{"id":224563,"date":"2026-03-08T11:39:28","date_gmt":"2026-03-08T16:39:28","guid":{"rendered":"https:\/\/gunsamerica.com\/digest\/?p=224563"},"modified":"2026-03-23T13:26:00","modified_gmt":"2026-03-23T18:26:00","slug":"up-10-8-6-blackout-bolt-action-ar-review","status":"publish","type":"post","link":"https:\/\/gunsamerica.com\/digest\/up-10-8-6-blackout-bolt-action-ar-review\/","title":{"rendered":"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard"},"content":{"rendered":"\n<p class=\"wp-block-yoast-seo-estimated-reading-time yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><svg aria-hidden=\"true\" focusable=\"false\" data-icon=\"clock\" width=\"20\" height=\"20\" fill=\"none\" stroke=\"currentColor\" style=\"display:inline-block;vertical-align:-0.1em\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z\"><\/path><\/svg><\/span><span class=\"yoast-reading-time__spacer\" style=\"display:inline-block;width:1em\"><\/span><span class=\"yoast-reading-time__descriptive-text\">Estimated reading time: <\/span><span class=\"yoast-reading-time__reading-time\">16<\/span><span class=\"yoast-reading-time__time-unit\"> minutes<\/span><\/p>\n\n\n\n<p>Uintah\u2019s UP-10 blends AR ergonomics with bolt-action precision, staying compact, quiet, and flat-out useful with both subsonics and supersonics.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-meet-the-up-10-bolt-action-ar-control-with-real-accuracy\"><strong>Meet the UP-10: Bolt-Action AR Control With Real Accuracy<\/strong><\/h2>\n\n\n\n<p>The UP-10 is Uintah Precision&#8217;s flagship rifle. This gun shares many similarities with an AR-10, but it&#8217;s bolt-action instead of semi-auto. Why would they do that? Well, bolt action platforms are inherently more accurate than semi-autos, and they suppress nicely! The UP-10 that I&#8217;ve spent years testing is an 8.6 Blackout with a 12.5&#8243; barrel and a collapsible SBA3 brace from SB Tactical. This gun is compact and capable of shooting a wide variety of projectiles. I tested mine with 220-grain supersonics to 350-grain subsonic ammunition. The UP-10 rode shotgun in my truck for months on end because it was capable of shooting a hard-hitting subsonic round, or a further-reaching supersonic, without any modifications to achieve reliability. I even took game animals with this gun, proving its lethality.<\/p>\n\n\n\n<p>This gun maintains a compact profile even after adding a suppressor to the muzzle. Also, because the UP-10 uses a standard lower receiver, I can easily swap the upper for a semi-automatic AR-10 upper, only requiring the addition of a buffer and spring. But, before I continue to talk about the <a href=\"https:\/\/uintahprecision.com\/product\/up-10-complete-rifle\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">UP-10 in 8.6 Blackout<\/a>, I think it&#8217;s important to also discuss who Uintah Precision is, what they stand for, and what their warranty covers.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_4367-1024x768.jpeg\" alt=\"Uintah Precision UP-10 8.6 Blackout with 12.5 inch barrel and SBA3 brace staged in the mountains.\" class=\"wp-image-224715\"\/><figcaption class=\"wp-element-caption\">My UP-10 in 8.6 Blackout has a 12.5&#8243; barrel, which makes it lighter weight and more portable. Due to the versatility of 8.6 Blackout, it remains very capable in many situations.<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-yoast-seo-table-of-contents yoast-table-of-contents\"><h2>Table of contents<\/h2><ul><li><a href=\"#h-meet-the-up-10-bolt-action-ar-control-with-real-accuracy\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Meet the UP-10: Bolt-Action AR Control With Real Accuracy<\/a><\/li><li><a href=\"#h-who-is-uintah-precision-and-why-this-design-works\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Who Is Uintah Precision and Why This Design Works<\/a><\/li><li><a href=\"#h-warranty-and-the-sub-moa-promise\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Warranty and the Sub-MOA Promise<\/a><\/li><li><a href=\"#h-ordering-the-standard-up-10-options-that-matter\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Ordering the Standard UP-10: Options That Matter<\/a><\/li><li><a href=\"#h-my-12-5-inch-8-6-blackout-build-and-setup\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">My 12.5 Inch 8.6 Blackout Build and Setup<\/a><\/li><li><a href=\"#h-real-world-from-truck-gun-to-quiet-hunter\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Real World: From Truck Gun to Quiet Hunter<\/a><\/li><li><a href=\"#h-accuracy-testing-subsonic-reality-supersonic-wins\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Accuracy Testing: Subsonic Reality, Supersonic Wins<\/a><\/li><li><a href=\"#h-up-10-12-5-inch-8-6-blackout-specifications-and-features\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">UP-10 12.5 Inch 8.6 Blackout Specifications and Features<\/a><\/li><li><a href=\"#h-final-thoughts-familiar-controls-bolt-action-benefits\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Final Thoughts: Familiar Controls, Bolt-Action Benefits<\/a><\/li><li><a href=\"#h-related-reads-from-gunsamerica-digest\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-level=\"2\">Related Reads from GunsAmerica Digest<\/a><\/li><\/ul><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-who-is-uintah-precision-and-why-this-design-works\"><strong>Who Is Uintah Precision and Why This Design Works<\/strong><\/h2>\n\n\n\n<p>Let&#8217;s learn a little about <a href=\"https:\/\/uintahprecision.com\/about-us\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Uinta<\/a>h Precision, starting with their name. Uintah (pronounced YOO-IN-TAH) arises from this company&#8217;s geographic location in the Uintah Basin of the Uintah Mountains of Utah. Originally, Uintah Machine made coal mining machinery. They swapped to precision rifles when coal mining slowed down, and there was less demand for their products in that industry. When they pivoted from coal mining machinery to firearms, they weren&#8217;t simply chasing money; their founder, Richard Hamilton, chased his passion. Using the Thomas Edison approach to invention, they attempted 975,000 prototypes to make the perfect modern bolt-action, and finally succeeded. Today, they offer bolt-action AR15 and AR10 platforms (aptly named the UP-15 and UP-10), semi-autos of the same type, a muzzleloader, and even a cannon!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-warranty-and-the-sub-moa-promise\"><strong>Warranty and the Sub-MOA Promise<\/strong><\/h2>\n\n\n\n<p>Uintah warrants all receiver assemblies to be free of defects in workmanship and\/or materials for the life of the receiver, bolt, and barrel extension nut. Also, if you are not happy with the upper\/firearm, return it within the first 30 days for a replacement or full refund of the purchase price. However, any work done to the receiver assembly by anyone other than Uintah Precision voids all warranties. Uintah also guarantees sub-MOA accuracy, measured by 3-shot groups at 100 yards with match-grade ammunition.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ordering-the-standard-up-10-options-that-matter\"><strong>Ordering the Standard UP-10: Options That Matter<\/strong><\/h2>\n\n\n\n<p>As stated, I have a UP-10 in 8.6 Blackout with a 12.5&#8243; barrel, 12&#8243; handguard, and SBA3 brace. If you want to order this same gun, you can. Go to <a href=\"https:\/\/uintahprecision.com\/product\/up-10-complete-rifle\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Uintah Precision&#8217;s website<\/a>, under &#8220;UP-10 complete Rifle,&#8221; you can input if you want left or right-handed, what caliber and barrel length (15 standard options to choose from), barrel material, and trigger type you want. Any firearm with a barrel length of less than 16&#8243; will come standard with an SBA3 pistol brace.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6496-1024x768.jpeg\" alt=\"SBA3 brace mounted on the UP-10 8.6 Blackout pistol length configuration.\" class=\"wp-image-224724\"\/><figcaption class=\"wp-element-caption\">Any firearm ordered from Uintah Precision that has a barrel length of less than 16&#8243; will come standard with this SB Tactical SBA3 brace.<\/figcaption><\/figure>\n\n\n\n<p>The combo I have runs $2,425.00, and the most expensive standard option goes up to $2,950.00. To jump into this higher price range, you need to select a carbon fiber barrel option. If you desire anything other than what is on the standard list, just call in and ask! The guys at Uintah enjoy a custom build as much as you do.<\/p>\n\n\n\n<p>The UP-10 doesn&#8217;t just look like a bolt action; it&#8217;s a true bolt action with a 3-lug bolt and 60-degree throw. There are other bolt-action AR uppers out there that appear to be a true bolt action, but aren&#8217;t constructed in this way. The upper and lower are also machined from 7075 billet aluminum.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6500-1024x768.jpeg\" alt=\"Closeup of the UP-10 three lug push feed bolt in hand.\" class=\"wp-image-224726\"\/><figcaption class=\"wp-element-caption\">Here&#8217;s a closer look at the bolt used in the UP-10. This bolt features a 3-lug, push feed design.<\/figcaption><\/figure>\n\n\n\n<p>The upper features a 20 MOA rail and Preferred Barrels 416R stainless or carbon fiber barrel. The lower comes with a 3lb Uintah Vitrum single-stage trigger, Magpul K2+ grip, and PRS Lite stock (for orders with barrels &gt; 16 inches). The UP-10 ships with (1) 10-round magazine and comes in a Savior Rifle Range bag, while full-length rifles come in Savior Specialist LRP bags, and pistol-length firearms come in the Grey Savior Covert bags.<\/p>\n\n\n\n<p>The UP-10 is compatible with DPMS LR-308 patterned semi-auto uppers, so feel free to mix and match your uppers and lowers in all legal possibilities. And finally, the cherry on top: These firearms are 100% made in the USA!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-my-12-5-inch-8-6-blackout-build-and-setup\"><strong>My 12.5 Inch 8.6 Blackout Build and Setup<\/strong><\/h2>\n\n\n\n<p>Again, the UP-10 I have tested is the 12.5&#8243; 8.6 Blackout. This gun has a 12.5&#8243; 416R stainless barrel threaded 5\/8&#215;24 at the muzzle. I chose to suppress this gun with a <a href=\"https:\/\/diligentdefense.com\/product\/dtf-sti-338-8-6-blk\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Diligent Defense DTF-STI 8.6mm suppressor<\/a> and mounted an Arken SH-4 GenII 4-16&#215;50 optic. These accessories were picked because the DTF-STI is a lightweight, high-quality suppressor that keeps the 8.6 Blackout comically quiet, and the Arken 4-16 power optic is an affordable yet capable optic with a power range that is conducive for close-range subsonic shooting as well as extended range supersonic engagements.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6493-1024x768.jpeg\" alt=\"UP-10 8.6 Blackout suppressed rifle leaned on a chicken coop, field-ready setup.\" class=\"wp-image-224721\"\/><figcaption class=\"wp-element-caption\">I can&#8217;t think of a better firearm to use around the farm. The UP-10 in 8.6 Blackout hits hard and is extremely quiet when paired with a quality suppressor like the Diligent Defense DTF-STI.<\/figcaption><\/figure>\n\n\n\n<p>I chose 8.6 blackout purely because of the variety of ammunition available in supersonic and subsonic types. I wished to have a rifle that I could hunt with and use either subs or supers, depending on the situation or opportunity presented. The lethality of a subsonic 280-400 grain bullet is no joke, and I&#8217;ve got a lot of experience in subsonic hunting with a different, but similar caliber. And supersonic ballistics greatly extend the effective range of this platform when needed.<\/p>\n\n\n\n<p>This pistol is everything you&#8217;ve come to know a high-quality AR to be, with billet 7075 aluminum upper and lower construction, precision manufacturing, and stylish design. The lower even comes with a buffer retainer pin and spring installed, for convenient and easy swaps to semi-auto uppers with the simple addition of a buffer and spring to the lower. You can also run the bolt action upper on a lower with buffer and spring installed, but it&#8217;ll feel different during operation than your typical bolt action. Speaking of bolt action feel, the UP-10 bolt runs smoothly. There is even a detent in the upper receiver that interacts with the bolt, making its operation feel positive and firm. You&#8217;ll find another detent in the lower receiver that puts pressure on the rear pivot pin lug, removing any play between the upper and lower receiver.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6477-1024x768.jpeg\" alt=\"UP-10 12.5 inch 8.6 Blackout separated upper and lower on scale showing 7 lb 4.7 oz weight.\" class=\"wp-image-224718\"\/><figcaption class=\"wp-element-caption\">Without any accessories mounted, I weighed my 12.5&#8243; UP-10 in 8.6 Blackout, and it came out to 7 pounds, 4.7 ounces. I have the upper and lower separated to make weighing the gun easier.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6476-1024x768.jpeg\" alt=\"UP-10 8.6 Blackout with Arken SH-4 and Diligent Defense suppressor weighing 10 lb 14.6 oz.\" class=\"wp-image-224717\"\/><figcaption class=\"wp-element-caption\">With the Arken scope and Diligent Defense suppressor installed, this system weighs 10 pounds and 14.6 ounces. I have the upper and lower separated to make weighing the gun easier.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-real-world-from-truck-gun-to-quiet-hunter\"><strong>Real World: From Truck Gun to Quiet Hunter<\/strong><\/h2>\n\n\n\n<p>I mentioned this earlier, but I&#8217;ve had this UP-10 in 8.6 Blackout for about two years now. I&#8217;ve taken it hunting several times, and I&#8217;ve taken game animals with it. I really like the versatility of the 8.6 Blackout because I&#8217;m able to carry supersonic and subsonic ammunition with me and decide which I want to use for any presented opportunity. I typically carry a supersonic round ready to go, and I&#8217;ll put a few subs in my pocket or as my second bullet in the magazine.<\/p>\n\n\n\n<p>Be aware that you will want to zero your gun for one ammunition or the other. Say you zero your gun for supersonic ammunition, you&#8217;ll also want to test the subsonic ammunition to see what your adjustment needs to be for its zero. For example, I sighted in this gun with Aitken Arms 220 grain Maker TREX Supers, but I know that my zero for the Discreet Ballistics 280 grain Selous Expander ammunition is 9 MOA up and 3 MOA left. To make a 100-yard shot with this quiet, hard-hitting, subsonic expanding round, I just need to dial this in the scope and take the shot.<\/p>\n\n\n\n<p>If you want to compare the 8.6 Blackout&#8217;s capabilities to a round you are already probably familiar with, take a peek at this article from <a href=\"https:\/\/www.ammunitiontogo.com\/lodge\/8-6-blackout-vs-300-blackout\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\">The Lodge that analyzes 8.6 Blackout versus .300 Blackout<\/a>. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_4133-1024x768.jpeg\" alt=\"Hunter with UP-10 8.6 Blackout and harvested turkey using Discreet Ballistics Selous Expander.\" class=\"wp-image-224714\"\/><figcaption class=\"wp-element-caption\">Here is a turkey I killed using Discreet Ballistics Selous Expanders. A 50-yard shot was a piece of cake with this quiet, devastating hunting ammunition.<\/figcaption><\/figure>\n\n\n\n<p>I killed a turkey last fall with the UP-10 using the Discreet Ballistics 280-grain Selous Expander ammunition, and it performed splendidly. This setup is so quiet that I will never forget how loud the impact of the bullet was when compared to the sound of the shot itself. And the terminal performance? It looked like a broadhead had passed through this turkey because the Selous Expander opened up so wide. Of course, it was a full pass-through.<\/p>\n\n\n\n<p>Another reason I like hunting with the UP-10 is that the manual of arms is very familiar. I work and play a lot with AR-style rifles, and this gun looks and feels the same. With the exception that it&#8217;s bolt action, of course. Also, mounting accessories on the handguard is easy because of the full-length MLOK design. You can easily throw on bipods, accessory rails, clip-on <a href=\"https:\/\/gunsamerica.com\/digest\/hunt365-irayusa-rico-mk1-384-rl42-thermal-full-review\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" data-wpil-monitor-id=\"2316\">thermal or night vision<\/a>, laser designators, and much more to perfectly outfit this gun for your needs. If you aren&#8217;t an AR person, maybe the UP-10 won&#8217;t be attractive to you. If you are an AR person, I&#8217;m sure you are seeing the versatility here. Oh, and if you want a semi-auto for any reason, just throw a semi-auto upper on and go waste a bunch of ammo!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-accuracy-testing-subsonic-reality-supersonic-wins\"><strong>Accuracy Testing: Subsonic Reality, Supersonic Wins<\/strong><\/h2>\n\n\n\n<p>For this accuracy test, I removed the suppressor from the UP-10 just to eliminate any potentially confounding variables. I also shot off a bench, using a bipod (Ckye Pod) up front and a rear bag to keep the gun stable. The barrel was allowed to cool fully between shot strings.<\/p>\n\n\n\n<p>Most of the ammunition I tested is subsonic, probably because this is the main appeal of the 8.6 Blackout cartridge to me. I shot 3-round groups at both 50 and 100 yards, partly because the zero for each ammunition type was wildly different. I used the 50-yard group to get a closer zero for the 100-yard grouping. This inconsistency between ammo types also foreshadowed the general inconsistency that I saw with subsonic ammunition. In some instances, the 100-yard group measured less in MOA than the same ammunition grouped at 50 yards.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_5751-1024x768.jpeg\" alt=\"UP-10 8.6 Blackout on bipod and rear bag at the range for accuracy testing.\" class=\"wp-image-224716\"\/><figcaption class=\"wp-element-caption\">At the range, I used a bipod and rear bag to keep things stable for accuracy testing.<\/figcaption><\/figure>\n\n\n\n<p>The ammunition I used was provided by the manufacturers, for the most part. This included <a href=\"https:\/\/discreetballistics.com\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Discreet Ballistics<\/a> 280 grain Selous Machined Expanders, <a href=\"https:\/\/meadammo.com\/product\/8-6-blackout-mead-250gr-fmj\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Mead 250 grain FMJ<\/a>, and three different subsonic and supersonic offerings from <a href=\"https:\/\/aitkenarms.com\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Aitken Arms<\/a>. I also grabbed some Fort Scott Munitions 285-grain TUI from <a href=\"https:\/\/www.ammunitiontogo.com\/20rds-8-6-blackout-fort-scott-munitions-285gr-tui-ammo\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Ammotogo.com<\/a>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/aitkenarms.com\/8-6-blackout-220-grains-maker-rex-expanding-supersonic-new-brass-20rds-veteran-owned-operated-made-in-texas-free-shipping-on-orders-over-200\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Aitken Arms 220 grain Maker TREX Super<\/a>\n<ul class=\"wp-block-list\">\n<li>52 yards: 0.25&#8243; (0.46 MOA)<\/li>\n\n\n\n<li>100 yards: 1.08&#8243; (1.0 MOA)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/aitkenarms.com\/8-6-blackout-300-grains-maker-expanding-subsonic-8-12-barrel-new-brass-20rds-veteran-owned-operated-made-in-texas-free-shipping-on-orders-200-or-more\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Aitken Arms 300 grain Maker Solid Sub<\/a>\n<ul class=\"wp-block-list\">\n<li>52 yards: 0.63&#8243; (1.16 MOA)<\/li>\n\n\n\n<li>100 yards: 2.56&#8243; (2.44 MOA)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/aitkenarms.com\/8-6-blackout-350-grains-maker-expanding-subsonic-8-12-barrel-new-brass-20rds-veteran-owned-operated-made-in-texas-free-shipping-on-orders-200-or-more\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Aitken Arms 350 grain Maker REX Sub<\/a>\n<ul class=\"wp-block-list\">\n<li>52 yards: 1.75&#8243; (3.21 MOA)<\/li>\n\n\n\n<li>100 yards: 4.18&#8243; (3.99 MOA)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/discreetballistics.com\/shop\/86blk_huntdefense\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Discreet Ballistics 280 grain Selous Machined Expander<\/a>\n<ul class=\"wp-block-list\">\n<li>52 yards: 2.56&#8243; (4.70 MOA)<\/li>\n\n\n\n<li>100 yards: 2.81&#8243; (2.68 MOA)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/www.ammunitiontogo.com\/20rds-8-6-blackout-fort-scott-munitions-285gr-tui-ammo\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Fort Scott Munitions 285 grain TUI<\/a>\n<ul class=\"wp-block-list\">\n<li>52 yards: 1.46&#8243; (2.68 MOA)<\/li>\n\n\n\n<li>100 yards: 2.33&#8243; (2.23 MOA)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"https:\/\/meadammo.com\/product\/8-6-blackout-mead-250gr-fmj\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Mead 250 grain FMJ<\/a>\n<ul class=\"wp-block-list\">\n<li>52 yards: 0.60&#8243; (1.1 MOA)<\/li>\n\n\n\n<li>100 yards: 1.57&#8243; (1.50 MOA)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6491-1024x768.jpeg\" alt=\"UP-10 8.6 Blackout 50 yard target results including Aitken Arms 220 grain Maker TREX Super.\" class=\"wp-image-224720\"\/><figcaption class=\"wp-element-caption\">These are the results of the 50-yard accuracy testing. Take note of how well the 220 grain TREX super from Aitken Arms (bottom right) performed! The other Aitken Arms ammunition you see in the photo is the 350-grain Maker REX sub (top left) and the 300-grain maker Solid.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6490-1024x768.jpeg\" alt=\"UP-10 8.6 Blackout 100 yard target results across multiple ammo types.\" class=\"wp-image-224719\"\/><figcaption class=\"wp-element-caption\">These are the results of the 100-yard accuracy test. This time, you&#8217;ll find the Aitken Arms 350 grain Maker REX subs on the top left, 300 grain Maker Solids on the top right, and 220 grain Maker TREX supers in the middle left on the separate sheet of paper. The rest of the groups should be easy to identify by the boxes next to them.<\/figcaption><\/figure>\n\n\n\n<p>As you can see, the UP-10 shot the supersonic ammunition the best, which is not surprising to me. It kept the Aitken Arms 220-grain Maker TREX Super ammunition grouping at or under 1 MOA, which is what Uintah Precision guarantees their rifles to shoot. The rest of the ammunition I tested is more novelty or special use. Still, the Mead 250-grain FMJ subsonic ammunition hovered near the 1 MOA mark.<\/p>\n\n\n\n<p>Some of you may see that a few popular, expensive subsonic options shot pretty poorly and get upset. I would warn you that with subsonic ammunition, nothing is predictable. You may have to try many different bullets to find one that performs well in any given rifle, and I think that is illustrated here. If I were to hunt with the UP-10 beyond 100 yards, I would want to test other subsonic ammunition until I found one that performed as needed, and I have no doubt that I&#8217;d find this combo.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6497-1024x768.jpeg\" alt=\"UP-10 12.5 inch barrel and 12 inch handguard showing tight suppressor fit at muzzle.\" class=\"wp-image-224725\"\/><figcaption class=\"wp-element-caption\">The 12.5&#8243; barrel and 12&#8243; handguard pair well with a suppressor, creating the smallest gap between the end of the handguard and the back of the suppressor when it&#8217;s attached.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-up-10-12-5-inch-8-6-blackout-specifications-and-features\"><strong>UP-10 12.5 Inch 8.6 Blackout Specifications and Features<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th>Model<\/th><td>UP-10 12.5&#8243; 8.6 Blackout<\/td><\/tr><tr><th>Caliber<\/th><td>8.6 Blackout<\/td><\/tr><tr><th>Barrel Length<\/th><td>12.5&#8243;<\/td><\/tr><tr><th>Overall Length<\/th><td>N\/A<\/td><\/tr><tr><th>Weight<\/th><td>7 pounds, 4.7 ounces<\/td><\/tr><tr><th>Capacity<\/th><td>N\/A<\/td><\/tr><tr><th>MSRP<\/th><td>$2,425.00<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>caliber: 8.6 Blackout<\/li>\n\n\n\n<li>barrel length: 12.5&#8243;<\/li>\n\n\n\n<li>twist rate: 1:3<\/li>\n\n\n\n<li>barrel diameter: 0.900&#8243;<\/li>\n\n\n\n<li>muzzle threads: 5\/8&#215;24<\/li>\n\n\n\n<li>weight: 7 lbs 4.7 ounces<\/li>\n\n\n\n<li>Trigger: Uintah Vitrum 3lb single stage\n<ul class=\"wp-block-list\">\n<li>not compatible with all triggers, see website for compatibility<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>7075 billet upper; AMERICAN aluminum<\/li>\n\n\n\n<li>7075 billet lower; AMERICAN aluminum<\/li>\n\n\n\n<li>4140 AMERICAN steel bolt\n<ul class=\"wp-block-list\">\n<li>three lug<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>20moa rail<\/li>\n\n\n\n<li>Preferred Barrels 416R Stainless match barrel<\/li>\n\n\n\n<li>Magpul K2+ grip<\/li>\n\n\n\n<li>SB Tactical SBA3 brace<\/li>\n\n\n\n<li>12\u201d M-Lok handguard<\/li>\n\n\n\n<li>Upper and Lower are DPMS LR-308 pattern for compatibility with semi-auto uppers\n<ul class=\"wp-block-list\">\n<li>See the website for a list of compatible uppers\/lowers<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>sub-MOA guarantee<\/li>\n\n\n\n<li>additional accessories\n<ul class=\"wp-block-list\">\n<li>(1) 10-round magazine<\/li>\n\n\n\n<li>grey Savior Covert bag<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>MSRP: $2,425.00<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6495-1024x768.jpeg\" alt=\"Close view of UP-10 bolt action upper and LR-308 pattern lower receiver fit.\" class=\"wp-image-224723\"\/><figcaption class=\"wp-element-caption\">Take a closer look at the upper and lower parts of the UP-10. The upper is different than the standard AR, of course, but the lower is just a standard LR-308 pattern lower receiver. Don&#8217;t pay any attention to the scratches I put on it; yours won&#8217;t arrive with those.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-final-thoughts-familiar-controls-bolt-action-benefits\"><strong>Final Thoughts: Familiar Controls, Bolt-Action Benefits<\/strong><\/h2>\n\n\n\n<p>I really enjoyed the <a href=\"https:\/\/uintahprecision.com\/product\/up-10-complete-rifle\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">UP-10 in 8.6 Blackout<\/a>. I have another UP-10 in 6 Creedmoor that I got years ago, and it is incredibly accurate, so I have no doubt that the inconsistency I saw in the accuracy test for this 8.6 Blackout is ammo-related. Perhaps this pistol is just picky about bullet design. Still, it showed that it can shoot MOA-sized groups with certain ammo, which is what this firearm is guaranteed to do, and I can&#8217;t be upset about that.<\/p>\n\n\n\n<p>One reason that the UP-10 is so attractive to me is that the manual of arms is familiar since I shoot a lot of AR platforms. This, plus the fact that it suppresses nicely due to the bolt-action nature of the pistol, makes the UP-10 one of the most pleasant shooting experiences I can ask for. Also, if you are like me and want to shoot semi-auto on occasion, you can take uppers or lowers that you already own and swap things around (in a legal manner) to achieve this. The UP-10 is not only fun to shoot, but it&#8217;s robust, too. This gun is overbuilt using quality materials sourced right here in the United States. Overall, I give the UP-10 high marks, and it&#8217;ll stay a favorite of mine.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2025\/11\/IMG_6494-1024x768.jpeg\" alt=\"UP-10 8.6 Blackout suppressed on bipod in gravel, compact and quiet field setup.\" class=\"wp-image-224722\"\/><figcaption class=\"wp-element-caption\">I really enjoy my UP-10 in 8.6 blackout, and I think it&#8217;s great for many different scenarios because of its compact size and the plethora of ammunition types available for use in it.<\/figcaption><\/figure>\n\n\n\n<p>Learn more about <a href=\"https:\/\/uintahprecision.com\/product\/up-10-complete-rifle\/\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Uintah Precision&#8217;s UP-10 here<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-related-reads-from-gunsamerica-digest\"><strong>Related Reads from GunsAmerica Digest<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"http:\/\/[Internal 1]\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">8.6 Blackout: Subsonic Hunting Field Notes<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/[Internal 2]\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Choosing the Right AR-10 Optic for Mixed Use<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/[Internal 3]\" target=\"_blank\" class=\"clickTracking\" campaign=\"up-10-8-6-blackout-bolt-action-ar-review\" title=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" target=\"_blank\" rel=\"noreferrer noopener\">Suppressor Basics: Getting the Most from Short Barrels<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Uintah\u2019s UP-10 blends AR ergonomics with bolt-action precision, staying compact, quiet, and flat-out useful with both subsonics and supersonics.<\/p>\n","protected":false},"author":93,"featured_media":224715,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_specdata_upc":"","_specdata_placement":"manual","footnotes":""},"categories":[694,36,1211],"tags":[102,4164,108,621],"featured":[],"hunt365":[],"class_list":{"0":"post-224563","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-gun-reviews","8":"category-reviews-pistols","9":"category-riley-baxter","10":"tag-feature-articles","11":"tag-gahome","12":"tag-guns","13":"tag-pistol"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Uintah UP-10 Review: Quiet, Compact, Accurate<\/title>\n<meta name=\"description\" content=\"We ran the UP-10 8.6 Blackout hard with subs and supers to see if this bolt-action AR stays compact, quiet, and truly MOA.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/gunsamerica.com\/digest\/up-10-8-6-blackout-bolt-action-ar-review\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"UP-10 8.6 Blackout: Bolt-Action AR That Hits Hard\" \/>\n<meta property=\"og:description\" content=\"Uintah\u2019s UP-10 blends AR ergonomics with bolt-action precision, staying compact, quiet, and flat-out useful with both subsonics and supersonics.\" \/>\n<meta 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content=\"@gunsamerica\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Riley Baxter\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"16 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/\"},\"author\":{\"name\":\"Riley Baxter\",\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/#\\\/schema\\\/person\\\/6604823eceaae79a5e82c46ae3bb45ee\"},\"headline\":\"UP-10 8.6 Blackout: Bolt-Action AR That Hits 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Baxter\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/#respond\"]}],\"accessibilityFeature\":[\"tableOfContents\"]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/\",\"url\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/\",\"name\":\"Uintah UP-10 Review: Quiet, Compact, Accurate\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/up-10-8-6-blackout-bolt-action-ar-review\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/IMG_4367-e1762809137913.jpeg\",\"datePublished\":\"2026-03-08T16:39:28+00:00\",\"dateModified\":\"2026-03-23T18:26:00+00:00\",\"description\":\"We ran the UP-10 8.6 Blackout hard with subs and supers to see if this bolt-action AR stays compact, quiet, and truly 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