Description
Description
Perfect for building your custom Mk4 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced. Made of 4140CM with a SBN Finish.CALIBER: .350 Legend BARREL: 16.1″, 1:16 twist, medium taper, 4140CM, SBN MUZZLE: Threaded 1/2-28 (9mm) GAS PORT LOCATION: Carbine Length – .750″ Gas Block Journal WEIGHT: 1lb 9oz
