Franklin Armory's patented Binary Firing System (BFS) is now available for your Glock 19 Gen3! The new G-S193 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. Plus, youll always know which mode youre in without having to come off your target with the integrated back plate mode indicator. Perfect for defense, sporting and recreational use. Specifications for Franklin Armory G-S193 Binary Pistol Trigger: Manufacturer: Franklin Armory Gun Model: Glock 19 Gen 3 Gun Make: Glock Trigger Pull Weight: 5 lb Fabric/Material: Aluminium, Steel Finish: Flat Black Color: Black Trigger Shape: Curved Features of Franklin Armory G-S193 Binary Pistol Trigger Easy to install Fits most Glock 19 Gen3 Firearms Selectable Semi and Binary (pull and release) Integrated mode indicator Optics ready (adapter plates 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 - Binary - Fires 1 round on pull and 1 round on release Package Contents: Franklin Armory G-S193 Binary Pistol Trigger