MANUFACTURER: SilencerCo FAMILY: Accessories MODEL: Glock 23 TYPE: Accessory-Barrels ITEM GROUP: Handgun Accessories CALIBER/GAUGE: 40 S&W FINISH: Black Nitride BARREL: 4.5" RATE-OF-TWIST: 1:10" RH THREAD PATTERN: 9/16x24 SHIPPING WEIGHT: 0.3 lbs. ADDL INFO: Constructed Using 416R SS ADDL INFO: Compatible w/ Gen3/Gen4 Glocks MFG MODEL NO: AC1757 UPC: 817272018370