Fusion Firearms 1911 10mm UMG Pistol Barrel 6 Inch Wilson/Nowlin Standard Stainless Steel 1911-BBL-1-42. The manufacturer says that Fusion Firearms UMG Barrels 6 Inch is compatible with 1911Fusion Firearms 1911-BBL-1-42: 1911 10mm UMG Pistol Barrel...