{"id":62356,"date":"2016-08-19T12:02:46","date_gmt":"2016-08-19T16:02:46","guid":{"rendered":"https:\/\/www.gunsamerica.com\/blog\/?p=62356"},"modified":"2016-08-19T12:02:46","modified_gmt":"2023-08-20T03:54:34","slug":"legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review","status":"publish","type":"post","link":"https:\/\/gunsamerica.com\/digest\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\/","title":{"rendered":"Full Auto Speeds – No NFA or Bumpfire – Franklin Armory Binary Firing System Installation & Full Review"},"content":{"rendered":"
\"The<\/a>

The Franklin Armory Binary Firing System (BFS) trigger modifies your AR-15-pattern rifle to fire on the pull and release of the trigger for a higher rate of fire. It can also function in standard semi-automatic mode.<\/p><\/div>\n

For more information, visit https:\/\/www.franklinarmory.com\/index.html<\/a>.<\/p>\n

To purchase on GunsAmerica.com, click this link: https:\/\/www.gunsamerica.com\/Search.aspx?T=franklin%20binary<\/a><\/p>\n

The definition of binary is \u201cconsisting of, indicating, or involving two.\u201d That is exactly how the Franklin Armory<\/a> Binary Firing System<\/a> (BFS) operates\u2014or not. The BFS drop-in AR-15 trigger allows a shooter to fire a round with the press of a trigger and fire a round with a release of the trigger. Priced at an MSRP of $399.99, it is a simple concept at first blush, but you really need to get your head around it since releasing the trigger is the normal procedure to reset a trigger in an AR-15 rifles or any semi-automatic firearm. From a tactical standpoint, this means you can conceivably fire two rounds down range in the time it would normally take to reset your trigger in the typical semi-automatic after one shot. Call it a double tap or two quick shots, the Franklin Armory BFS can significantly increase the rate of lead down range.<\/p>\n

\"The<\/a>

The BFS is designed to “drop in” to a wide range of AR-15 lowers with minimal fitting and fuss. Note the red selector markings “plate” under the ambidextrous selector. Image courtesy of Franklin Armory.<\/em><\/p><\/div>\n

The way the BFS works is via three sears that are activated by the safety selector. The drop-in BFS works in conjunction with a highly modified safety selector. A safety sticker\u2014one of the first steps Franklin Armory describes in the installation manual\u2014informs the user that the AR-15 is not set up like the typical semi-automatic AR-15. The safety selector has the familiar \u201cSAFE\u201d and \u201cSemi\u201d modes, but instead of a third \u201cAuto\u201d mode it is marked for a \u201cBINARY\u201d mode. This system makes sense since there may be situations where you only want to shoot one round at a time like in semi-automatic mode.<\/p>\n

My first question before first acquiring a BFS was: How do I stop the equipped AR-15 from firing more than one shot when in \u201cBINARY\u201d mode? The answer is simple. But, more on that in a moment.<\/p>\n

The BFS takes a slightly different skill set to manipulate the trigger and the ambidextrous safety selector, and that is just the nature of the beast when it comes to any piece of new equipment. You need to put in place new procedures, and Franklin Armory lays out the new procedures simply so even I can understand them.<\/p>\n

\"The<\/a>

The Franklin Armory BFS comes with the trigger group unit, ambidextrous selector, shims, selector mode label, and comprehensive instructions.<\/p><\/div>\n

The BFS is called a drop-in trigger, but it is not a drop-in in the truest sense. The fire control pocket of all AR-15s differ slightly\u2014mil-spec or not mil-spec\u2014and a bit of fitting or shimming is required on the BFS to make it fit and function properly. Franklin Armory has designed the BFS so it is compatible with all AR-15 lowers, even after it has been fitted to a specific lower.<\/p>\n

I\u2019ve replaced plenty of AR-15 triggers, and the drop-in varieties are an exercise in simplicity. Literally drop the trigger in the fire control pocket and replace the trigger and hammer pins. Done. The BFS is a different animal requiring a bit of finesse to fit. Franklin Armory suggests the trigger be installed by a gunsmith and if you are mechanically challenged that might be the route you take. If you are a DIY type of guy or gal, then you will find fitting the BFS is pretty simple task.<\/p>\n

FITTING ACTIONS<\/strong><\/h2>\n
\"Step<\/a>

The base of the BFS housing features twin rings that interface with the shims for fitting the housing to your specific lower.<\/p><\/div>\n

You will note on the bottom of the BFS trigger housing are two circular ridges. Depending on how the BFS fits in your lower receiver you will either need to add shims, which Franklin Armory provides, or file down the circular ridges. I had three lowers on hand and I wanted to see which lower would allow me to drop the BFS in, push in the pins and be good to go. On hand were Stag Arms, PSA and Ruger lowers. All were slightly different in internal dimensions. The BFS fit easily in the PSA and Ruger, but was a bit more snug in the Stag Arms. For all three lowers it looked like the pin holes in the lower aligned with the pin holes in the BFS, but in all three receivers they were a hair off. The pins should push in with finger pressure. Don\u2019t try to gorilla it and use a brass hammer. The critical thing with the BFS is make sure the trigger housing sits in the fire control pocket at the right height and that it is at the right height so that the pins can be pushed in with finger pressure only. If they do you are good to go. You will need to the tap the last 16th of an inch or so of the pins since the BFS has a retainer clip built into it that snaps into one of the grooves in the pins.<\/p>\n

[one_third]<\/p>\n

\"The<\/a>

Step 1:<\/strong> The BFS is designed to drop into any standard AR-15 lower. There are two rings on the lower face of the trigger housing that can interface with included shims for precise fitting.<\/p><\/div>\n

[\/one_third]<\/p>\n

[two_third_last]<\/p>\n

\"Step<\/a>

Step 2:<\/strong> If required, you can (carefully) file down the shim-interface rings to get the BFS housing to fit in your AR. Only take a little off at a time, checking for fit regularly.<\/p><\/div>\n

[\/two_third_last]<\/p>\n

[one_half]<\/p>\n

\"Step<\/a>

Step 3:<\/strong> When installed properly, the housing should line up with the pin holes so that the pins can be pushed in by hand. Do not hammer them home, but rather go back and work with the rings and shims as needed.<\/p><\/div>\n

[\/one_half]<\/p>\n

[one_half_last]<\/p>\n

\"Step<\/a>

Step 4:<\/strong> Install the selector after placing the selector label on the other side of the lower. The author is shown here installing the right-side ambidextrous lever.<\/p><\/div>\n

[\/one_half_last]<\/p>\n

I decided to first fit the BFS to the PSA lower and held the BFS in a vise. Fitting the PSA would require me to remove metal from the rings to get the pins to align. Taking swipes with a metal file, I took the same number of passes at the same pressure forward and aft of the trigger, then dropped the BFS into the lower and checked the pins. I was going slow since I did not want to remove too much material. You could also use a piece or sandpaper wrapped around a flat piece of wood and get the same results. A Dremel tool is an option, but it can take too much material off. I have found Dremel tools allow you to make big mistakes rather fast. Stick with the file or sandpaper. After about three passes, the BFS dropped in and the pins pushed in the with just finger pressure.<\/p>\n

\"Once<\/a>

Once installed, the BFS is ready for use in your AR-15 rifle. Note the selector label on the left side of the lower.<\/p><\/div>\n

In the case where the fire control pocket is too deep, shims provided by Franklin Armory allows the user raise the BFS within the pocket. The same procedure applies, except the polymer shims (which are positioned in the two circular ridges) can be relieved of material as needed. Use a razor knife to remove one layer at a time, each of which is .0002 inches thick. It\u2019s like peeling back the skin of an onion. Take a layer off the shim, test it in the lower, and continue until the pins can be inserted into the lower using finger pressure. I was able to use the shims to get the BFS to work with the Ruger and the Stag rifles.<\/p>\n

There are 11 prescribed function check scenarios that you need to run through prior to range testing. The function checks ensure the trigger and safety selector are working as designed. As you work your way through the 11 scenarios, you will test the safety selector and trigger in “SAFE,” “SEMI,” and “BINARY” modes. Don’t skip this important step. Running through the function checks, I was able to get an idea on how the rifle operates with the BFS and how I needed to manipulate the rifle with the unique BFS trigger.<\/p>\n

\"Full<\/a>

If you have fired a single round in BINARY mode but do not want to fire the second round, safely engage the selector back to SEMI model and then release the trigger. You must then cycle the action to reset the system.<\/p><\/div>\n

A CHANGE OF HEART<\/h2>\n

So, back to my earlier question: As I noted earlier, when in “BINARY” mode, how could I fire a round with a trigger press and then disengage the trigger so that on release of the trigger a second round would not fire? There are a number of instances where you may need this functionality: Shot one on the trigger press, and the target is neutralized so there is no need to fire the second round with a trigger release; or multiple rounds fired may reveal your location, or I know I’m running low on ammo. Yes, I understand that is what “SEMI” mode is for, but I’m making a point that the rifle needs to be rendered safe when I release my finger from the trigger. The procedure to do this is to keep the trigger pressed and rotate the selector into \u201cSEMI\u201d mode. I also wanted to understand if I used this procedure if the hammer needed to be recocked to fire the rifle. The answer is yes. So, after you have selected \u201cSEMI\u201d, eject the round in the chamber, which resets the hammer for \u201cSEMI\u201d or \u201cBINARY\u201d modes.<\/p>\n

\"The<\/a>

The author kept his shots on this 8-inch target at 25 yards while firing “bursts” of three, four and five shots.<\/p><\/div>\n

At the range I loaded a 30-round magazine and got a feel for the trigger in \u201cSEMI\u201d mode. The trigger broke clean at about 4.5 pounds. Switching the selector to \u201cBINARY\u201d mode, it felt odd to release the trigger to fire a round, but I soon\u2014after a magazine or so\u2014got the hang of release-firing the AR. The speed was astounding. Just listening to the muzzle blast, you would think I was firing full-auto. Speed is fun and in some situations could be a life saver. Controlling the weapon in rapid firing took some adjustment and a firm grip. But what is speed without accuracy\u2014noise and empty brass, in my opinion. I used a Shoot-N-C target so I could see the effect down range. The 8-inch target was peppered with holes. I found I could fire the BFS at rapid speed with good accuracy if I kept my bursts to three, four or five shots. After the fifth shot, the muzzle began to climb upward. A good compensator would really enhance shooting accuracy. The PSA kept pace with the BFS, spitting out a ribbon of brass. It has to be one of the more fun ways to quickly unload a magazine.<\/p>\n

Disclaimer<\/em><\/strong>: Since the Franklin Armory BFS trigger group is unique and can fire a round by releasing the trigger, it is important to be extra vigilant with all safe gun-handling practices and procedures related to its use.<\/em><\/p>\n

For more information, visit https:\/\/www.franklinarmory.com\/index.html<\/a>.<\/p>\n

To purchase on GunsAmerica.com, click this link: https:\/\/www.gunsamerica.com\/Search.aspx?T=franklin%20binary<\/a><\/p>\n

\"The<\/a>

The BFS is a really interesting option for your AR-15. If you are looking for a cool accessory for your AR, then take a close look.<\/p><\/div>\n

\"The<\/a>

The author put the BFS through its paces on the range, and it ran without a hitch.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

The Franklin Armory Binary Firing System drop-in AR-15 trigger allows a shooter to fire a round with the press of a trigger and fire a second round with a release of the trigger. From a tactical standpoint, the Franklin Armory BFS can significantly increase the rate of fire.<\/p>\n","protected":false},"author":65,"featured_media":62357,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_specdata_upc":"","_specdata_placement":"","footnotes":""},"categories":[35,59,7,234,875,109,72,771],"tags":[110,613,132,102,543,620],"featured":[],"hunt365":[],"class_list":{"0":"post-62356","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-accessories-misc","8":"category-ar-15-gear-reviews","9":"category-gunsamerica-authors","10":"category-columns","11":"category-gear-for-rifles","12":"category-gear-reviews","13":"category-columns-gunsmithing","14":"category-robert-sadowski","15":"tag-accessories-2","16":"tag-ar-15","17":"tag-buzz","18":"tag-feature-articles","19":"tag-franklin-armory","20":"tag-tactical"},"yoast_head":"\nFull Auto Speeds - No NFA or Bumpfire - Franklin Armory Binary Firing System Installation & Full Review<\/title>\n<meta name=\"description\" content=\"Full Auto Speeds - No NFA or Bumpfire - Franklin Armory Binary Firing System Installation & Full Review - Authors\" \/>\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\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Full Auto Speeds - No NFA or Bumpfire - Franklin Armory Binary Firing System Installation & Full Review\" \/>\n<meta property=\"og:description\" content=\"The Franklin Armory Binary Firing System drop-in AR-15 trigger allows a shooter to fire a round with the press of a trigger and fire a second round with a release of the trigger. From a tactical standpoint, the Franklin Armory BFS can significantly increase the rate of fire.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/gunsamerica.com\/digest\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\/\" \/>\n<meta property=\"og:site_name\" content=\"Gun Reviews and News | GunsAmerica.com\/Digest\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/gunsamerica\" \/>\n<meta property=\"article:published_time\" content=\"2016-08-19T16:02:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-20T03:54:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/gunsamerica.com\/digest\/wp-content\/uploads\/2016\/08\/BLR-L-L_1024x1024.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"585\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Robert Sadowski\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@gunsamerica\" \/>\n<meta name=\"twitter:site\" content=\"@gunsamerica\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Robert Sadowski\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/\"},\"author\":{\"name\":\"Robert Sadowski\",\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/#\\\/schema\\\/person\\\/330e444757376ce110a52194be84fe88\"},\"headline\":\"Full Auto Speeds – No NFA or Bumpfire – Franklin Armory Binary Firing System Installation & Full Review\",\"datePublished\":\"2016-08-19T16:02:46+00:00\",\"dateModified\":\"2023-08-20T03:54:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/\"},\"wordCount\":2201,\"commentCount\":149,\"publisher\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/wp-content\\\/uploads\\\/2016\\\/08\\\/BLR-L-L_1024x1024.png\",\"keywords\":[\"Accessories\",\"AR-15\",\"Buzz\",\"Feature Articles\",\"franklin armory\",\"Tactical\"],\"articleSection\":[\"Accessories Misc.\",\"AR-15\",\"Authors\",\"Columns\",\"For Rifles\",\"Gear Reviews\",\"Gunsmithing\",\"Robert Sadowski\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/\",\"url\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\\\/\",\"name\":\"Full Auto Speeds - 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Sadowski is an American writer and journalist. He has written about firearms and 2A issues for decades, and has trained with some of the country\u2019s finest firearm instructors in handguns, rifles\\\/carbines, shotguns and long-range shooting. He has also had the opportunity to interview numerous individuals deeply involved in protecting our 2nd Amendment. He a is a frequent contributor to numerous gun-enthusiast publications, a few of which include: \u2022 TheArmorylife.com \u2022 TheTruthAboutGuns.com \u2022 GunsAmerica.com \u2022 GunBroker.com \u2022 Gun-Tests.com \u2022 Shooting Illustrated \u2022 SHOT Business \u2022 Gun Digest Sadowski is also the author of numerous gun books, including: \\\"9MM \u2014 Guide to America\u2019s Most Popular Caliber\\\" and \\\"Book Of Glock,\\\" both of which were #1 new releases on Amazon. He also wrote the popular DIY gun book series: Shooter\u2019s Bible Guide to Firearms Assembly, Disassembly, and Cleaning Volume 1 and Volume 2. Other gun books authored by Sadowski include \\\"50 Guns That Changed the World,\\\" and edited \\\"The M16A1 Rifle: Operation and Preventive Maintenance\\\"originally published by the U.S. Department of the Army. He also edits the annual \\\"Gun Trader's Guide\\\" to firearm values. Sadowski is also the Treasurer\\\/Secretary of the GLOCK Collectors Association, a non-profit organization with the mission to educate and preserve: Educate the public on the models, variations, and commemoratives built by GLOCK, as well as provide members with information on GLOCK serial numbers, importation, and other facts unique to GLOCK pistols.\",\"url\":\"https:\\\/\\\/gunsamerica.com\\\/digest\\\/author\\\/robertsadowski\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Full Auto Speeds - No NFA or Bumpfire - Franklin Armory Binary Firing System Installation & Full Review","description":"Full Auto Speeds - No NFA or Bumpfire - Franklin Armory Binary Firing System Installation & Full Review - Authors","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/gunsamerica.com\/digest\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\/","og_locale":"en_US","og_type":"article","og_title":"Full Auto Speeds - No NFA or Bumpfire - Franklin Armory Binary Firing System Installation & Full Review","og_description":"The Franklin Armory Binary Firing System drop-in AR-15 trigger allows a shooter to fire a round with the press of a trigger and fire a second round with a release of the trigger. 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Note the red selector markings \"plate\" under the ambidextrous selector. Image courtesy of Franklin Armory."},{"@type":"BreadcrumbList","@id":"https:\/\/gunsamerica.com\/digest\/legal-full-auto-ar-franklin-armory-binary-firing-system-installation-full-review\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/gunsamerica.com\/digest\/"},{"@type":"ListItem","position":2,"name":"Full Auto Speeds – No NFA or Bumpfire – Franklin Armory Binary Firing System Installation & Full Review"}]},{"@type":"WebSite","@id":"https:\/\/gunsamerica.com\/digest\/#website","url":"https:\/\/gunsamerica.com\/digest\/","name":"Gun Reviews and News | GunsAmerica.com\/Digest","description":"Gun Reviews, Industry News, and Product Reviews for Rifles, Pistols, Revolvers, Shotguns, Optics, and Ammunition. Looking to purchase a firearm online? 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Sadowski is an American writer and journalist. He has written about firearms and 2A issues for decades, and has trained with some of the country\u2019s finest firearm instructors in handguns, rifles\/carbines, shotguns and long-range shooting. He has also had the opportunity to interview numerous individuals deeply involved in protecting our 2nd Amendment. He a is a frequent contributor to numerous gun-enthusiast publications, a few of which include: \u2022 TheArmorylife.com \u2022 TheTruthAboutGuns.com \u2022 GunsAmerica.com \u2022 GunBroker.com \u2022 Gun-Tests.com \u2022 Shooting Illustrated \u2022 SHOT Business \u2022 Gun Digest Sadowski is also the author of numerous gun books, including: \"9MM \u2014 Guide to America\u2019s Most Popular Caliber\" and \"Book Of Glock,\" both of which were #1 new releases on Amazon. He also wrote the popular DIY gun book series: Shooter\u2019s Bible Guide to Firearms Assembly, Disassembly, and Cleaning Volume 1 and Volume 2. Other gun books authored by Sadowski include \"50 Guns That Changed the World,\" and edited \"The M16A1 Rifle: Operation and Preventive Maintenance\"originally published by the U.S. Department of the Army. He also edits the annual \"Gun Trader's Guide\" to firearm values. 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