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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? Manufacturer 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, Manufacturer, August 22, 2019
Will this work in conjunction with the BRN-180s? If not, is there anything that does? Expert Answer

This will not function with a BRN-180S and I am not aware of a binary trigger system that will because of how the firearm functions.

by Armando R., Gear Expert, February 19, 2020
Customer Reviews
Helpful Positive Review Great triggers by DOUG, Verified Owner, September 4, 2024
Franklin Armory makes the best triggers… the fact that they offer a binary switch only makes them that much more interesting.
2/3 found this helpful
Helpful Positive Review SHIPPED FAST. WORKS AS IT SHOULD. VERY FUN by Flako, Verified Owner, March 9, 2024
DROPPED IT IN MY AR-10. MADE SURE EVERYTHING WAS NICELY OILED. AND IT RAN FLAWLESS. VERY VERY FUN!
3/3 found this helpful
Helpful Positive Review 5550 BFSIII Trigger for Sig Sauer MPX by Christfollower, January 8, 2019
Purchased and installed this binary trigger in my MPX 9mm sub. Also installed magazine extenders to increase magazine capacity from 30 to 40 rounds. Trigger works as marketed. A magazine can be emptied in about 6 seconds. It takes time to learn the t...
Read More...
10/12 found this helpful
Helpful Positive Review Fun and surprisingly good! by Cason Cerda, Verified Owner, April 13, 2024
As fun as you think it will be and actually better than you think it will be. Very little to no take up and super loud reset, much louder than my rise blitz trigger. Find the sweet spot for rapid fire and you won’t have any problems with it!
4/4 found this helpful
Helpful Positive Review Binary trigger by Jason Clephane, Verified Owner, December 31, 2023
Awesome, super fun, installed in about an hour was having fun that afternoon
2/2 found this helpful
Helpful Positive Review OMG! AWESOME, FUN, ACCURATE by dp17402, Verified Owner, February 24, 2021
Holy Sugar! Lol. This is my second BSF Binary. Other is in my CZ scorpion Evo S1. BOTH ARE PERFECT. I can’t speak to installation because I had my GS do the install. But this trigger on select only fire, great feel and great accuracy. Flip the ...
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10/11 found this helpful
Read All 303 Reviews

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

The OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms 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. The OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms are easy to install with no gunsmithing needed. Competition shooters appreciate being able to place shots close to each other more quickly with the BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms. Even if you're not a competition shooter, these Rifle Triggers can be extremely useful for predator hunting, as well as a ton of fun even if you're just target shooting.image

WARNING: California`s Proposition 65

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

Manufacturer: Franklin Armory
Fabric/Material: Metal
Trigger Pull Weight: 4.5 lb
Trigger Pin Size: 0.154 in
Gun Make: AR Platform
Condition: New

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

  • Marked variants are available exclusively from OpticsPlanet
  • Release round can be canceled by simply moving our Patented selector out of Binary® mode while holding the trigger back 
  • Easy to install 
  • Smooth trigger pull: 4.5 lbs, +/- 0.5 lbs Positive reset on release phase 
  • Enhanced buffer springs for optimal flexibility 
  • Works in most AR platforms and calibers including 5.56 NATO, 308 Win, 300 BLK, 9mm, Rimfire, etc.... 
  • Compatible with most Bolt Carrier Groups (BCG)  
  • Great for competition shooters, tactical shooters, and recreational enthusiasts 
  • The AR-C1 comes with a standard curved trigger. 
  • Binary Firing System® waiver and release

Package Contents:

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

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

List of Orderable Models

OpticsPlanet Exclusive Franklin Armory BFSIII AR-S1 Trigger - Binary Firing System for AR Platforms, Straight, 4.5lb Pull, Silver, 5645A-CRN , MPN: 00-50621-CRN , Code: 2G2-BIN-5550-00-50621-CRN
Franklin Armory BFSIII AR-C1 Trigger, Binary Firing System for AR Platforms, Curved, Black, 00-50614-BLK , MPN: 00-50614-BLK , UPC: 818725010859 , Code: 2G2-BIN-5550-00-50614-BLK

OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms Unavailable & Discontinued Models

List of Unorderable Models

USED Franklin Armory BFSIII AR-C1 Trigger, Binary Firing System for AR Platforms, Curved, Black, 00-50614-BLK, EDEMO10, Condition Parts Only/Salvage, Defective , MPN: 00-50614-BLK-EDEMO10 , Code: 2G2-BIN-5550-00-50614-BLK-EDEMO-DF-F
DEMO, OpticsPlanet Exclusive Franklin Armory BFSIII AR-S1 Trigger - Binary Firing System for AR Platforms, Straight, 4.5lb Pull, Silver, 5645A-CRN , MPN: 00-50621-CRN-DEMO , Code: 2G2-BIN-5550-00-50621-CRN-DEMO
DEMO, Franklin Armory BFSIII AR-S1 Trigger, Binary Firing System for AR Platforms, Straight, Black, 00-50621-BLK , MPN: 00-50621-BLK-DEMO , Code: 2G2-BIN-5550-00-50621-BLK-DEMO
Franklin Armory BFSIII AR-S1 Trigger, Binary Firing System for AR Platforms, Straight, Black, 00-50621-BLK , MPN: 00-50621-BLK , UPC: 818725011450 , Code: 2G2-BIN-5550-00-50621-BLK
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