Faxon Firearms Duty 9mm Conversion Barrel for G22 Gen 2-4 4.5in Barrel 1-10 Twist 4150 Thrd Black Nitride 11I-PTB-DSC229. These barrels are then given a black Nitride coating to increase lubricity barrel life and resistance to surface wear. All barrels are conventionally rifled to allow a wider range of ammunition to be used including cast lead. The barrels drop into factory-spec slides with no gunsmithing required. Better-than-factory tolerances ensure a consistent tighter lockup than OEM. Why Faxon Pistol Barrels? 4150 CMV or 416-R Stainless - Only the best steels for durability longevity and accuracy. 9mm SAAMI Chambers - Superior accuracy with complete SAAMI compatibility & boring reliability. Tighter Tolerances - Drop-in yet better fitment and lock-up. Conventional Rifling - Fully compatible with cast bullets 11 Degree Target Crown Specifications for Faxon Firearms Duty Series Conversion Glock 22 9mm Luger Threaded Pistol Barrel: Manufacturer: Faxon Firearms Color: Black Finish: Black Nitride Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 22 Model Generation: 1 Barrel Length: 4.5 in Barrel Profile: Flame Fluted Barrel Material: 4150 Chrome Moly Vanadium Barrel Twist Rate: 1-10 Flutes: No Weight: 0.28 lb Rifling Profile: Conventional Rifling Quantity: 1 Gas System Length: Pistol Length Firearms Threads Per Inch: Non Threaded Gun Frame Size: Compact Package Contents: Faxon Firearms Duty Series Conversion Glock 22 9mm Luger Threaded Pistol Barrel What firearm models does the manufacturer say Faxon Firearms Duty Series Conversion Glock 22 9mm Luger Threaded Pistol Barrel is compatible with? The manufacturer says that Faxon Firearms Duty Series Conversion Glock 22 9mm Luger Threaded Pistol Barrel is compatible with Glock 22Faxon Firearms GA910N22NGQ-T: Duty 9mm Rifle Barrel 5.065inch 1-10 Twist Black Nitride