Nighthawk Custom Barrel Threaded Gov. .45 ACP w/.578 X 28 Threads 5.755in OAL Stainless Fully Machined. These Pistol Barrels from the trendsetters at Nighthawk Custom feature a heat-treated 416 Stainless Steel construction that creates a tough and reliable barrel that will deliver repeatable results with each and every shot. With a pre-installed gas port the Nighthawk Custom Match Grade 1911 Threaded Barrel easily installs with the turn of a screw making it perfect for hands that need feeding and reloading. Better yet these barrels are backed by a company with a lifetime guarantee. Make your Mark. Buy the Nighthawk Custom Match Grade 1911 Threaded Barrel today Specifications for Nighthawk Custom Match Grade 1911 Threaded Barrel: Manufacturer: Nighthawk Custom Color: Stainless Fabric/Material: Stainless Steel Barrel Twist Rate: 1-16 Gun Make: 1911 Platform Gun Model: 1911 Condition: New Package Contents: Nighthawk Custom Match Grade 1911 Threaded Barrel What firearm models does the manufacturer say Nighthawk Custom Match Grade 1911 Threaded Barrel is compatible with? The manufacturer says that Nighthawk Custom Match Grade 1911 Threaded Barrel is compatible with 1911Nighthawk Custom SP0037: Barrel Threaded Gov. .45 ACP w/.578 X 28 Threads 5.755in OAL Stainless Fully Machined