Franklin Armory G-S173 Binary Kit — Glock 17 Gen 3

The Franklin Armory G-S173 is a slide and trigger kit designed for Glock 17 Gen 3 platforms. Engineered around Franklin Armory's patented Binary Firing System (BFS), the G-S173 gives users a selectable two-position operation between standard semiautomatic and Binary modes. The slide is optics-ready, includes front and rear tritium night sights, and features high-tactile serrations with an anti-glare top stripe.

Key Specifications

• The model is G-S173.
• Compatibility is listed as Glock 17 Gen 3.
• Operation is a 2-position selectable system offering Semi and Binary modes.
• Binary mode operation fires one round on the pull and one round on the release, as described by the manufacturer Binary mode.
• The unit includes front and rear tritium night sights.
• The slide is optics ready and accommodates adapter plates sold separately.
• The finish is listed as Black with an Applied Finish type.
• The listed weight is 1.4.
• Dimensions are given as 2.80 x 5.40 x 9.35.
• Country of origin is stated as US.

The G-S173 combines Franklin Armory's BFS technology with an optics-ready slide and integrated mode indication to provide a configurable upgrade for Glock 17 Gen 3 users. Its installed features—tritium sights, tactile serrations, and the ability to cancel the release round by switching to semi while the trigger is depressed—reflect a design focused on practical use and adaptability across sporting and range applications. This kit is a direct-fit replacement for compatible Glock 17 Gen 3 slides and triggers for users seeking a factory-engineered BFS solution.