Fusion Firearms 9x23 Officer UMG Barrel Wilson/Nowlin Bull Stainless Steel. Gunsmith fitting and gunsmith fitting marks are common when installing a Fusion Firearms UMG Pistol Barrels Officer. Fusion Firearms precision machine these Pistol Barrels from type-series stainless steel for superior strength durability heat absorption and surface finish. Barrel nut flats are also crafted from Type-III hardened chromium stainless steel for wear and corrosion resistance. For reliable function and heat resistance test firing or durability testing Fusion Firearms Ultra Match Grade (UMG) 1911 Pistol Barrels Officer are the answer. Specifications for Fusion Firearms UMG Barrels Officer: Manufacturer: Fusion Firearms Color: Stainless Steel Silver Finish: Stainless Steel Fabric/Material: 416R Rifle Grade Stainless Steel Gun Make: 1911 Platform Gun Model: Colt 1911 Officer Barrel Length: 7 in Additional Features: Barrel Nose - Bull Package Contents: Fusion Firearms UMG Barrels Officer What firearm models does the manufacturer say Fusion Firearms UMG Barrels Officer is compatible with? The manufacturer says that Fusion Firearms UMG Barrels Officer is compatible with Colt 1911 OfficerFusion Firearms 1911-BBL-1-322: 1911 9x23 Officer UMG Barrel Wilson/Nowlin Bull Stainles Steel