Franklin Armory BFSIII SP-S1 Binary Firing System for Stribog, Straight Trigger

The Franklin Armory Binary Firing System Gen 3 (BFSIII), brand part no. 18-50000-BLK, is a 3-position trigger built for the Stribog platform with a straight trigger bow. In position 3 it fires one round on the pull and a second round on release, a binary function that reduces split times between rounds for tighter groups in both tactical and competition use. Franklin Armory’s patented selector lets you cancel the release-round function at any time simply by moving the selector out of Binary mode while holding the trigger back, and it offers a positive reset on the release phase. It works in most Stribog models, including the A1, A3, and A3S. This rifle trigger installs easily into a compatible Stribog.

Key Specifications

• Built as a 3-position trigger with a Binary (position 3) mode.
• Fires one round on pull and one round on release in Binary mode.
• Fitted for the Stribog platform, compatible with A1, A3, and A3S models.
• Features a straight trigger bow.
• The release-round function can be canceled by moving the selector out of Binary mode while holding the trigger back.
• Provides a positive reset on the release phase.
• Ships at approximately 0.427 lb.

Frequently Asked Questions

Is a binary trigger a machine gun? No. A binary trigger like the BFSIII fires exactly one round per pull and one round per release — two distinct functions of the trigger — which is legally distinct from an automatic-fire mechanism; Franklin Armory’s binary triggers are an established, lawfully sold Title I product category.

Can I turn off the binary function? Yes, Franklin Armory’s patented selector lets you cancel the release-round function at any time by moving the selector out of Binary mode while holding the trigger back.

Buy the Franklin Armory BFSIII SP-S1 Binary Firing System for Stribog, Straight Trigger

Tighter groups and reduced split times are exactly what the BFSIII’s binary function is built to deliver on a Stribog. Order this from a Lubbock, TX gun shop and our team will get your order processed right away.