BARREL GLOCK 17 9MM 1/2X28 5" THREADED BARREL Manufacturer Model Number: AC864 Manufacturer: SilencerCo Model: Glock 17 Caliber: 9mm Type: Accessory-Barrels Item Type: Accessory Finish: Black Nitride Shipping Weight: 0.3 Feature: Constructed Using 416R SS Feature: Compatible w/ Gen3/Gen4 Glocks Optic Adjustable Objective: false Optic Reticle Illuminated: false