ranklin Armory's patented Binary Firing SystemA(R) (BFS(TM)) is now available for your GlockA(R) 22 Gen3! The new G-S223 allows you to select between semiautomatic and BinaryA(R) modes to provide reduced split times and tighter groupings. Like all BFS(TM) triggers, the release round can be cancelled by simply switching back to semiautomatic while the trigger is depressed. Plus, you'll always know which mode you're in without having to come off your target with the integrated back plate mode indicator. Prefect for defense, sporting and recreational use. Features: Easy to install Fits Glock 22 Gen3 Selectable Semi and BinaryA(R) (pull and release) Integrated mode indicator Optics ready (our adapter plates are sold separately) Front and rear tritium night sights High-tactile front and rear serrations Anti-glare top stripe serrations Binary Trigger Operation: Position 1 - Semi - Fires 1 round per pull Position 2 - BinaryA(R) - Fires 1 round on pull and 1 round on release