Franklin Armory

Upgrade your AR platform with the Franklin Armory® BFSIII™ AR-S1 Binary Firing System Trigger. Please note that all sales are final for triggers.

Key Features:

• 3-position trigger with the fastest semi-automatic firing capability
• Position 1 - Safe (will not fire)
• Position 2 - Semi (fires 1 round per pull)
• Position 3 - Binary (fires 1 round on pull and 1 round on release)

Trigger Operation:

• Release round can be canceled by moving the selector out of Binary mode while holding the trigger back
• Smooth trigger pull: 4.5 lbs, +/- 0.5 lbs
• Positive reset on release phase
• Enhanced buffer springs for optimal flexibility

Compatibility:

• Works in most AR platforms and calibers, including 5.56 NATO, 308 Win, 300 BLK, 9mm, Rimfire, etc.
• Compatible with any BCG

Warning:

• Not for civilian sales in CA, CT, DC, FL, HI, IA, MD, NJ, NY, RI, and WA
• NEVER ALTER ANY INTERNAL COMPONENT OF THE BFS™
• Improper installation, use, or tampering with the BFS™ will void the warranty
• No refunds will be issued for triggers after installation has been attempted

By purchasing this product, you accept responsibility and liability for the serviceability of the final installation. We strongly recommend seeking qualified training on using these products. Franklin Armory has partnered with LMS Defense to offer a 25% discount on training. Completing the course earns you a 25% discount code for your next purchase on this site.

Trigger pin size is .154". Please note that 80% lowers, polymer lowers, and carbon lowers are not compatible.