{"id":21378,"date":"2014-07-05T17:54:23","date_gmt":"2014-07-05T21:54:23","guid":{"rendered":"http:\/\/www.gunsamerica.com\/blog\/?p=21378"},"modified":"2014-07-05T17:54:23","modified_gmt":"2023-08-17T17:41:30","slug":"mgis-hydra-mutli-caliber-one-lower-new-gun-review","status":"publish","type":"post","link":"https:\/\/gunsamerica.com\/digest\/mgis-hydra-mutli-caliber-one-lower-new-gun-review\/","title":{"rendered":"MGI&#8217;s Hydra: Mutli-Caliber From One Lower&#8211;New Gun Review"},"content":{"rendered":"<p>[one_half padding=&#8221;0 0 0 0px&#8221;]<\/p>\n<h2><a href=\"https:\/\/www.mgi-military.com\/index.php?id=1\" campaign=\"MGI Hydra\" target=\"_blank\" class=\"clickTracking\"><\/h2>\n<h2>MGI Hydra<\/h2>\n<h2><\/a><\/h2>\n<p>[\/one_half]<\/p>\n<p>[one_half_last padding=&#8221;0 0 0 0px&#8221;]<\/p>\n<a href=\"\/Search.htm?T=MGI+Hydra\" campaign=\"<\/p>\n<h2>MGI Hydra<\/h2>\n<p>\" target=\"_blank\" class=\"clickTracking\"><img loading=\"lazy\" decoding=\"async\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"alignnone wp-image-19033 size-full\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/05\/buy-now-on-GA.jpg\" alt=\"Buy Now on GunsAmerica\" width=\"381\" height=\"46\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/05\/buy-now-on-GA.jpg 381w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/05\/buy-now-on-GA-150x18.jpg 150w\" sizes=\"(max-width: 381px) 100vw, 381px\" \/><\/a>\n<p>[\/one_half_last]<\/p>\n<div id=\"attachment_21391\" style=\"width: 410px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-12.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21391\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"wp-image-21391 size-medium\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-12-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21391\" class=\"wp-caption-text\">The 9mm barrel is on the rifle, but the 5.56 barrel can be put on in a matter of seconds.<\/p><\/div>\n<p>The Hydra is a mythical creature with multiple heads.\u00a0 It was a snake-like water serpent dragon thing best left alone.\u00a0 Every time you cut off one head, two new heads grew back in its place.\u00a0 The ancient creature is also the basis for one of the most exciting new takes on the AR platform.\u00a0 The Hydra, from MGI, combines a multi caliber lower with an interchangeable mag well and uppers in various calibers.\u00a0 Right now, MGI is making 5.56, 9mm, 7.62&#215;39, and 300 Blackout.\u00a0 That\u2019s only four distinct heads for the Hydra, but there are other calibers in the works.<\/p>\n<p>The method behind the madness is surprisingly simple.\u00a0 The Hydra lower looks just like a typical AR lower, except the mag well has been chopped off.\u00a0 The interchangeable mag wells then slides back onto the lower.\u00a0 The upper can be altered by switching out the bolt, and adding a new barrel.\u00a0 The forend has a clamp built in that secures the barrel inside the upper. The upper then secures the mag well, and so on.<\/p>\n<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/TPLGQJi4G88\" width=\"853\" height=\"480\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>For the novice, switching takes only a minute.\u00a0 I\u2019d recommend that you wait until the barrel cools down first.\u00a0 When we were shooting video for this review, we were moving fast, and the barrel was awkwardly hot during the first half of the conversion.\u00a0 Watch out for that.<\/p>\n<div id=\"attachment_21394\" style=\"width: 410px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-15.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21394\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21394\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-15-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-15-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-15-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-15-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-15.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21394\" class=\"wp-caption-text\">This is the 5.56 mag well with a magazine in place. It feels odd off of its rifle.<\/p><\/div>\n<p>The process is simple.\u00a0 The clamp on the bottom of the forend has a steel bar that holds it secure.\u00a0 Flip up that bar.\u00a0 Slide the polymer piece down the forend, toward the muzzle.\u00a0 That exposes two locking bars that are aligned parallel to the bore (which indicates that the barrel is locked in).\u00a0 Move them in opposite directions until the rods are perpendicular to the bore.\u00a0 At that point, the barrel can simply be pulled out through the forend.\u00a0 The forend and upper will remain together as one unit and the upper can be removed like any other.<\/p>\n<p>With the upper removed, the mag well slides off easily.\u00a0 There is a detent pin in the front of the trigger guard that needs to be pushed in so the guard can be lowered.\u00a0 Pull the mag well up and out, slide the new one on, and reattach the trigger guard. Switch out the bolt in the upper and pin the upper back in place.\u00a0 Slide the new barrel down inside the forend, and reverse the steps above.\u00a0 Make the locking bars parallel, secure them with the polymer piece, and lock that in place.\u00a0 Insert a magazine, cycle, fire.<\/p>\n<div id=\"attachment_21393\" style=\"width: 410px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-14.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21393\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21393\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-14-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-14-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-14-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-14-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-14.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21393\" class=\"wp-caption-text\">These rails guide the mag well onto the lower.<\/p><\/div>\n<p>When the gun is together, it feels like any other similarly configured AR.\u00a0 There is a bit of a rattle in the gun, especially when there is no magazine in the mag well, but the rattle is a component of the modularity.\u00a0 Without a bit of play, getting the mag wells on and off the gun would be cumbersome.\u00a0 With a magazine in the rifle, it solidifies and seems absolutely normal.<\/p>\n<p>We have two different caliber conversions: 5.56 and 9mm.\u00a0 The feel of the 5.56 was hardly distinguishable from any other similar rifle.\u00a0 The 9mm well is a 5.56 mag well sized chunk that has been cut for the much smaller 9mm mag, so there is some more mass to it.<\/p>\n<div id=\"attachment_21389\" style=\"width: 410px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-10.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21389\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21389\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-10-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-10-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-10-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-10-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-10.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21389\" class=\"wp-caption-text\">This soap bar looking piece is what holds the gun together.<\/p><\/div>\n<p>The clamp at the base of the forend is flat and wide, and makes that part of the rifle feel unique, but is isn\u2019t in the way of your support hand, at all.\u00a0 The rest of the railed forend allows for the use of any sort of accessories.\u00a0 It isn\u2019t something you can swap out easily, because of the clamp, so love it or leave it.\u00a0 For the benefit I see from the rest of the platform, I think I can live with MGI\u2019s forend, no problem.\u00a0 It has ample room and is railed on all four sides.<\/p>\n<p>The grip and stock are interchangeable.\u00a0 If you want to monkey with the design, that is easy.\u00a0 The rest of the gun is typical AR, too, so you can make the typical modifications to triggers, stocks, charging handles, etc.<\/p>\n<p>Up to this point in this review, the Hydra has been defined by the novelty of multiple calibers running from one lower.\u00a0 Yet there\u2019s more.\u00a0 The gun actually has a lot to live up to.\u00a0 It is one thing to simply offer greater modularity and a variety of calibers, but it has to shoot as well (if not better) than the competition if the whole platform is going to survive. Many of us not only own multiple rifles in different calibers, we own multiple AR-15s.\u00a0 So just having one lower has to really fulfill a unique purpose.<\/p>\n<div id=\"attachment_21386\" style=\"width: 410px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-7.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21386\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"wp-image-21386 size-medium\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-7-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-7-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-7-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-7-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-7.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21386\" class=\"wp-caption-text\">This detent pin secures the trigger guard to the mag well.<\/p><\/div>\n<p>All I can say up to this point is so-far, so-good.\u00a0 This gun runs incredibly well.\u00a0 We had absolutely no issues with .223 or the 9mm rounds we shot.\u00a0 There were no failures, no failure to feeds, no light strikes.\u00a0 And that\u2019s a pretty incredible accomplishment.\u00a0 Many of the guns we\u2019re sent for review can\u2019t do that with just one caliber, much less two.\u00a0 Think if the difference in pressures between the typical .223 and 9mm rounds.\u00a0 These piston system is adjustable, but the 9mm is blowback.\u00a0 The 9mm and the .223 are also being driven by the same hammer, with a spring tension that isn\u2019t adjusted between calibers.<\/p>\n<p>The 9mm uses a Colt style double stack magazine.\u00a0 They are easy to feed into the well, but we had to pull them from the well when they were empty.\u00a0 A good, sharp flip of the rifle worked too.\u00a0 The 5.56 mags worked well.\u00a0 We tested our typical battery of aluminum, steel, and plastic magazines.\u00a0 No issues, there, and mags dropped free predictably.<\/p>\n<div id=\"attachment_21391\" style=\"width: 410px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-12.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21391\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"wp-image-21391 size-medium\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-12-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-12.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21391\" class=\"wp-caption-text\">The Aimpoint PRO is a great option for this rifle, or for any AR. And point of impact was consistent between the two calibers.<\/p><\/div>\n<p>We ran an Aimpoint Pro on top of the gun for most of the testing, and shot up silhouettes and steel.\u00a0 The flat shooting of the 5.56 upper made shooting while moving as easy as it is with any AR.\u00a0 The barrel is capped with a typical A2 style flash hider.\u00a0 On full sized targets, the gun is as fast and reliable as any typical AR, and maybe more reliable (in the long run) because of the piston system.<\/p>\n<p>And we didn\u2019t experience much deviation in point of impact from the 5.56 to the 9mm.\u00a0 We didn\u2019t have to tweak the Aimpoint at all.\u00a0 The range where we shoot has a couple of long bays for rifle work, and a steel challenge course set up along the side.\u00a0 I wasn\u2019t about to shoot steel with the 9mm barrel from typical steel challenge distances (at least not until I saw how far it slung lead), but from about 50 yards out, the plates were no challenge at all.\u00a0 Even though the 9mm barrel isn\u2019t ported and has no muzzle device, the weight of the barrel holds down the rise and it shoots incredibly well.\u00a0 The weight of the package is balanced nicely, so moving between targets happens easily.<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21400\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-21.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21400\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"wp-image-21400 size-medium\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-21-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-21-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-21-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-21-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-21.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21400\" class=\"wp-caption-text\">We emptied a .223 magazine and then changed the barrel out for the 9mm.<\/p><\/div>\n<p>[\/one_half]<\/p>\n<p>[one_half_last]<\/p>\n<div id=\"attachment_21399\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-20.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21399\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"wp-image-21399 size-medium\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-20-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-20-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-20-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-20-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-20.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21399\" class=\"wp-caption-text\">From the same position, the 9mm barrel showed the same basic shot placement.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n<div id=\"attachment_21398\" style=\"width: 410px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-19.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21398\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21398\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-19-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-19-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-19-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-19-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-19.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21398\" class=\"wp-caption-text\">The 9mm barrel operates with simple blowback pressure.<\/p><\/div>\n<p>The barrels on these are all 16 inches.\u00a0 For most typical 9mm rounds, that equates to 1,300 to 1,400 FPS.\u00a0 The 5.56 pushes out closer to (or above) 3,000 FPS.\u00a0 Both are respectable, and serve distinct purposes. But there are other options.\u00a0 The piston 5.56 version sells for $1599.\u00a0 A typical gas operated 5.56, 7.62&#215;39, 9mm, or 300 Black Out would sell for $1,299. If you want the MGI Survival Package, which includes all four calibers, the price is $2,799.<\/p>\n<p>The main difference between the options has to do with three variables: caliber, gas block, and piston (or blowback, or gas operated).\u00a0 The piston barrels require unique bolts.\u00a0 If you simply want one rifle in one caliber, than the choices are fairly easy.\u00a0 The additional kits (barrel, mag well, and bolt) sell for $550.\u00a0 Individual mag wells sell for $275.<\/p>\n<p>In the end, I\u2019m left with two questions.\u00a0 How will the various components of the Hydra stand up over time?\u00a0 And how will the wear on the firearm affect its accuracy?\u00a0 These aren\u2019t easy to answer in the time we typically have to do a review, but we will be doing some follow-ups.<\/p>\n<div id=\"attachment_21388\" style=\"width: 410px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-9.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21388\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21388\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-9-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-9-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-9-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-9-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-9.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21388\" class=\"wp-caption-text\">The 9mm mag well. How well will these pieces handle the abuse of recoil? They should be fine, and they&#8217;re easily replaced.<\/p><\/div>\n<p>And there are lingering questions for the platform, too.\u00a0 We\u2019ve got a long history of having different guns in different calibers.\u00a0 Lately, multiple caliber platforms have become more common.\u00a0 I have friends who don\u2019t have gun loving spouses.\u00a0 Some of them have artificial, absurd limits on the numbers of guns they can own.\u00a0 I\u2019m emailing all of them this review.\u00a0 If the ATF considers this one gun, than a spouse must consider it one gun, too.\u00a0 That\u2019s the way it works.<\/p>\n<p>Yet here are also serious benefits for training .\u00a0 If you can\u2019t afford to shoot 300 Black Out, or 5.56 even, you may be able to pick up plenty of 7.62&#215;39.\u00a0 Or if you want to keep a 9mm carbine set up for home defense, have another option for play, and another for hunting, all working off of a similar set of controls, with the same exact feel, then the Hydra is for you.\u00a0 I would suggest running frangible ammo in the 9mm, if you are going to run it inside, as 115 grain bullets traveling at 1,300 will punch through walls.<\/p>\n<p>I\u2019m excited about the platform.\u00a0 I saw it at the NRA Show this year, but didn\u2019t get to put any rounds down range.\u00a0 Now that I\u2019ve shot it, I see that it is much more than a novelty.\u00a0 I\u2019d like to see the concept taken further.\u00a0 At the very least, I\u2019d like a .22LR upper and a 12 gauge upper.\u00a0 I know I might be dreaming with that last one, but so what. I never thought I&#8217;d be able to swap a 5.56 upper for 7.62&#215;39, either.\u00a0 Check out the Hydra.\u00a0 Their Survival Package is conveniently packaged with all four of their calibers.\u00a0 Four heads on one fire-breathing dragon.\u00a0 Not bad for $2,799.<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21397\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-18.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21397\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21397\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-18-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-18-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-18-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-18-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-18.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21397\" class=\"wp-caption-text\">One great option from MGI is a piston driven 5.56 upper. This keeps the guts cleaner, which makes switching between calibers much easier.<\/p><\/div>\n<p>[\/one_half]<\/p>\n<p>[one_half_last]<\/p>\n<div id=\"attachment_21395\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-16.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21395\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21395\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-16-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-16-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-16-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-16-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-16.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21395\" class=\"wp-caption-text\">The mag wells simply slide down milled rails in the lower.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21392\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-13.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21392\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21392\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-13-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-13-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-13-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-13-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-13.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21392\" class=\"wp-caption-text\">The 9mm uses a long stick magazine. It will hold twenty rounds, easy, and empties much faster than it loads.<\/p><\/div>\n<p>[\/one_half]<\/p>\n<p>[one_half_last]<\/p>\n<div id=\"attachment_21390\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-11.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21390\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21390\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-11-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-11-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-11-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-11-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-11.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21390\" class=\"wp-caption-text\">The forend is fixed to the upper, and the barrel slides inside and locks tight.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21387\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-8.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21387\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21387\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-8-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-8-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-8-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-8-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-8.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21387\" class=\"wp-caption-text\">For the most part, the lower and upper feel just like typical AR parts, but they offer so much more flexibility.<\/p><\/div>\n<p>[\/one_half]<\/p>\n<p>[one_half_last]<\/p>\n<div id=\"attachment_21385\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-6.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21385\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21385\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-6-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-6-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-6-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-6-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-6.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21385\" class=\"wp-caption-text\">The detent pin is easily pressed in with the point of a .223.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21384\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-5.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21384\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21384\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-5-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-5-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-5-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-5-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-5.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21384\" class=\"wp-caption-text\">Even the engraving on the lower speaks to the modularity. And it can frustrate your FFL, who has to mark the caliber.<\/p><\/div>\n<p>[\/one_half]<\/p>\n<p>[one_half_last]<\/p>\n<div id=\"attachment_21383\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-4.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21383\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21383\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-4-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-4-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-4-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-4-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-4.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21383\" class=\"wp-caption-text\">The gap where the mag well connects to the lower shows the relaxed tolerances that make assembly easy and truly modular.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21382\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-3.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21382\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21382\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-3-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-3-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-3-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-3-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-3.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21382\" class=\"wp-caption-text\">The piston system is just one option for the 5.56 upper. You can get one with a traditional gas system, too.<\/p><\/div>\n<p>[\/one_half]<\/p>\n<p>[one_half_last]<\/p>\n<div id=\"attachment_21381\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-2.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21381\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21381\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-2-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-2-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-2-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-2-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-2.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21381\" class=\"wp-caption-text\">One of the best parts about the Hydra is that the entire gun breaks into a very small package. The barrel fits in this case, too.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n<p>[one_half]<\/p>\n<div id=\"attachment_21380\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-1.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21380\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21380\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/MGI-1-400x266.jpg\" alt=\"hydra\" width=\"400\" height=\"266\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-1-400x266.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-1-150x100.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-1-1024x682.jpg 1024w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/MGI-1.jpg 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21380\" class=\"wp-caption-text\">Extra barrels will come packaged with mag wells and a magazine.<\/p><\/div>\n<p>[\/one_half][one_half_last]<\/p>\n<div id=\"attachment_21406\" style=\"width: 410px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/IMG_5141_sm.jpg\" target=\"_blank\" class=\"clickTracking\" campaign=\"mgis-hydra-mutli-caliber-one-lower-new-gun-review\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-21406\" title=\"MGI's Hydra: Mutli-Caliber From One Lower--New Gun Review\" class=\"size-medium wp-image-21406\" src=\"https:\/\/www.gunsamerica.com\/blog\/wp-content\/uploads\/2014\/07\/IMG_5141_sm-400x252.jpg\" alt=\"hydra\" width=\"400\" height=\"252\" srcset=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/IMG_5141_sm-400x252.jpg 400w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/IMG_5141_sm-150x94.jpg 150w, https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2014\/07\/IMG_5141_sm.jpg 800w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-21406\" class=\"wp-caption-text\">The Survival package comes with all four currently available calibers.<\/p><\/div>\n<p>[\/one_half_last]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MGI&#8217;s Hydra isn&#8217;t your typical AR platform.  One lower will allow you to shoot 5.56, 7.62&#215;39, 300 Black Out, or 9mm.  Check out our review. Replacing a mag well and switching uppers takes less than a minute.  You can switch between a pistol caliber carbine, a CQB rifle, and a hunting rifle on the fly.  How well does the new platform perform?  <\/p>\n","protected":false},"author":18,"featured_media":21391,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_specdata_upc":"","_specdata_placement":"","footnotes":""},"categories":[92,37],"tags":[132,108,620],"featured":[],"hunt365":[],"class_list":{"0":"post-21378","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-david-higginbotham","8":"category-gun-reviews-rifles","9":"tag-buzz","10":"tag-guns","11":"tag-tactical"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>MGI&#039;s Hydra-Multi Caliber AR Review<\/title>\n<meta name=\"description\" content=\"The Hydra is a fully functional AR platform. One lower will allow you to shoot 5.56, 7.62x39, 300 Black Out, or 9mm. 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