G-S173 G17 G3 BINARY SLIDE BLK COMPLETE BINARY SLIDE Manufacturer Model Number: G-S173 Manufacturer: Franklin Armory Model: G-S173 Binary Firing System Caliber: Multi Type: Accessory-Slide Assemblies Item Type: Accessory Finish: Black Shipping Weight: 1.45 Feature: 2-Position Operation Feature: Fits Glock 17 Gen 3 Optic Adjustable Objective: false Optic Reticle Illuminated: false