Franklin Armory's G-S173 Binary Trigger for GLOCK 17 Gen 3

Engineered with Franklin Armory’s patented Binary Firing System® (BFS™), G-S173 is the first pull-and-release trigger to provide Glock 17 users with the ability to actively select between regular semiautomatic and Binary® modes and safely cancel the release round.

Not for civilian sales in CA, CT, DC, DE, FL, HI, IA, IL, MD, NJ, NY, RI, and WA. Some states may also not allow them for LE or Military Personnel. 

G-S173 features include:

• Binary®/Semiautomatic selector paddle
• Front and rear tritium night sights
• Optics ready to accommodate multiple adapter plates (sold separately)
• Semi/Binary® mode indicator on back plate
• High-tactile front and rear slide serrations
• Anti-glare slide top stripe serrations

In Binary® mode, a single round is fired when the trigger is pulled and a single round is fired when the trigger is released. One of the revered safety features incorporated into all Franklin Armory BFS™ triggers is the ability to cancel the release round. To cancel the release round on G-S173, simply move the selector lever located on the slide from Binary® to the “semi” position before releasing the trigger.