Franklin Armory’s patented Binary Firing System® (BFS™) is now available for your Glock® 17 Gen3. The new G-S173 allows you to select between semiautomatic and Binary® modes to provide reduced split times and tighter groupings. Like all BFS™ triggers, the release round can be cancelled by simply switching back to semiautomatic while the trigger is depressed. You’ll always know which mode you’re in without having to come off your target with the integrated back plate mode indicator.
This exclusive kit features a gold anodized trigger and a patented Binary Firing System, allowing users to switch between semiautomatic and binary modes for reduced split times and tighter groupings. The kit includes a selector paddle switch and rear indicator plate, and is optics ready. Perfect for defense, sporting and recreational use.






