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3 Models Available

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852彩票开户
Gun Model: Most AR Platforms Color: Black Trigger Shape: Traditional Curved

Code: 2G2-BIN-5550-5550

MPN: 5550A

UPC: 818725010859

$429.99 Save 10%
$386.99
Receive ?$7.74?OP Bucks
Gun Model: AR Color: Silver Trigger Shape: Straight

Code: 2G2-BIN-5550-5645A-CRN

MPN: 5645A-CRN

$429.99 Save 10%
$386.99
Receive ?$7.74?OP Bucks
Gun Model: AR Color: Black Trigger Shape: Tactical Flat

Code: 2G2-BIN-5550-AR-S1

MPN: AR-S1

UPC: 818725011450

$429.99 Save 10%
$386.99
Receive ?$7.74?OP Bucks
Free shipping* & free returns*
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Please note that all sales are final and no returns will be accepted for this product in any circumstances

OpticsPlanet Exclusive Franklin Armory BFSIII AR-S1 Trigger - Binary Firing System for AR Platforms, Straight, 4.5lb Pull, Silver, 5645A-CRN - a product you can only find on OpticsPlanet.

We have partnered with your favorite brand, Franklin Armory, to create a limited edition852彩票开户 product you wont find anywhere else. Whether it's a new product launch, design modification, these exclusives are only available at OpticsPlanet.

Get the latest and greatest in exclusive items with products crafted only for our loyal OpticsPlanet852彩票开户 customers!

Product Info for Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms

The Franklin Armory Binary Firing Trigger System III brings new trigger functionality to familiar AR platforms. These Rifle Triggers from Franklin Armory modify your AR rifle so that it fires on both the trigger pull and trigger release. Franklin Armory BFS III Triggers are easy to install with no gunsmithing needed. Competition shooters appreciate being able to place shots close to each other more quickly with Franklin Armory BFS III AR Trigger Systems.

WARNING: California`s Proposition 65

Specifications for Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms:

Fabric/Material: Metal
Trigger Pull Weight: 4.5 lb
Trigger Pin Size: 0.154 in
Caliber: .22 Caliber

Features of Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms:

  • Easy to install. No custom fitting.
  • Better trigger pull. 4.5 pounds, +-.5 pound
  • The release phase now has a positive reset.
  • New design eliminates backup disconnector.
  • Stronger buffer spring (included) reduces the possibility of hammer follow.
  • Works in most AR application: AR10 (308 WIN), AR15, MPX, .223 AR.
  • Works in F17 series in .17 WSM WITHOUT modification.
  • Works on .22LR uppers WITHOUT modification.
  • Works on 9mm uppers WITHOUT modification.
  • Trigger pin size is .154".
  • No 80% lowers, polymer lowers or carbon lowers.

Package Contents:

  • Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms

Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms Orderable Models

List of Orderable Models

Franklin Armory BFSIII AR-C1 Trigger, Binary Firing System for AR Platforms, Curved, Black, 5550 , MPN: 5550A , UPC: 818725010859 , Code: 2G2-BIN-5550-5550
OpticsPlanet Exclusive Franklin Armory BFSIII AR-S1 Trigger - Binary Firing System for AR Platforms, Straight, 4.5lb Pull, Silver, 5645A-CRN , MPN: 5645A-CRN , Code: 2G2-BIN-5550-5645A-CRN
Franklin Armory BFSIII AR-S1 Trigger, Binary Firing System for AR Platforms, Straight, Black, AR-S1 , MPN: AR-S1 , UPC: 818725011450 , Code: 2G2-BIN-5550-AR-S1
Product Videos
Questions & Answers
"No 80% lowers, polymer lowers or carbon lowers.", is it saying this trigger won't work on polymer lowers? And what's an 80% lower? Featured Answer

We have found that many 80%, carbon fiber, and polymer receivers are not within Milspec tolerances. Lower receiver must be within Milspec for our trigger to operate.

by Franklin Armory, Verified Owner, August 22, 2019
Will this work in a Sig Sauer MCX Rattler 300 blackout pistol? Featured Answer

The MCX and MPX series of firearms are not made to Milspec tolerances. Because of this the Franklin Armory trigger may or may not function in one of these platforms. It depends entirely on your individual firearm. Lowers must be within Milspec tolerances for the trigger to operate.

by Franklin Armory, Verified Owner, August 22, 2019
Customer Reviews
Helpful Positive Review Shoots perfect controlled pairs by Will, February 5, 2017
I have yet to do a mag dump, because ammo is so expensive but the double taps are amazingly accurate. Much better than a 3 round burst in my opinion (4 years in the ARMY.) IF YOU'RE INTO full auto go with the echo, if you want controlled pairs, the...
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76/80 found this helpful
Helpful Negative Review Don’t waste your money by Dan, January 2, 2018
Installed the trigger straight from Franklin Armory and would not pass first function test. Contacted manufacturer and they told me to try a different lower and hammer, 3 lowers and 4 hammers later, still wouldn’t function properly. After having to p...
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118/153 found this helpful
Most Recent Reviews BSCIII AR-C1 Binary Trigger by Thomas Boduch, March 23, 2020
I installed this trigger on a 9MM AR lower. It performed perfectly as advertised. I tried to install it on a Bushmaster COBRA. It will not work this gun due to the placement of the trigger guard. It was easy to install. Directions were easy to f...
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Most Recent Reviews Works great!!! by Bradj, Verified Owner, March 22, 2020
Installed on a Springfield Saint Lower. I’ve run the OEM .300BLK 10.5” and an Aero Precision .223 10.5” upper with this kit and had no issues. The stock Springfield spring seems to work well. Just dropped the trigger in and shot away. I’ve also b...
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Most Recent Reviews Can’t live without it by In love, March 7, 2020
Bought mine 6 months ago and go shooting every month. Instant double tap totally accurate. Could be just my lucky charm but after firing I always clean and lube the springs of the trigger and no matter how many rounds I run through had zero issues
Read All 147 Reviews
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