The Franklin Armory Binary Trigger Firing System III for AR-15s has three fire settings:
- Safe (no pew)
- Semi (pew)
- Binary (pew on pull and pew on release)
The trigger can be installed in most AR-15s and is compatible with most bolt carrier groups.
***Not for civilian sales in CA, DC, IA, NJ, NY, HI, WA, RI, FL, MD, or CT.


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