Centurion Arms MK12 18" 5.56 NATO 1:7 R5 416R Stainless Steel Rifle Length Barrel

Centurion Arms MK12 18" 5.56 NATO 1:7 R5 416R Stainless Steel Rifle Length BarrelCenturion Arms MK12 Rifle Barrels are the result of development done by the U.S. government to give Special Operations forces the best possible weapon system. Troops who have carried these Rifle Barrels from Centurion Arms give them high marks for reliability and accuracy. Centurion Arms MK12 Crane Spec. Rifle Barrels are manufactured from 416R stainless steel with a blasted stainless finish. Get special ops quality when you upgrade to the Centurion Arms MK12 18-inch Rifle Barrel.Features Barrel Extension: M4 Feed Ramps Chamber: Optimized for use with MK262 (Black Hills 77gr equivalent) Twist: 1 in 7 right-hand Contour: for use with OPS Inc. Centurion Arms barrels serve as HBAR barrels Centurion Arms barrels require no further break-in Requires gunsmith installationSpecifications Color: Stainless Finish: Stainless Fabric/Material: 416R Stainless Steel Cartridge: 5.56mm Barrel Length: 18 in Barrel Profile: MK12 Gas System Length: Rifle Length Threads per Inch: 1/2x28 Barrel Twist Rate: 1-7 Barrel Material: 416R Stainless Steel Weight: 2.4 oz, 2.4 lb