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
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