CMMG 18" Bull Barrel Upper, 5.56 NATO, Black Aluminum Free Float Tube, 18" Stainless Steel Bull Barrel

CMMG, Inc.
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CMMG Upper, 5.56 NATO, 18" Stainless Steel Bull Barrel, Black Aluminum Free Float Tube, Flat Top

Specifications and Features:
5.56x45 NATO chamber
1:9 twist
11 degree recessed target crown
Stainless Steel Barrel
Forged M4 upper receiver is T marked and has M4 feed ramp cuts
Semi Auto bolt carrier

Barrels are engraved CMMG MPC 5.56 NATO 1:9. Each upper is head spaced and test fired before shipping. The upper is built off of our standard forged A3 receiver with M4 feed ramps. The barrel is our 4140 steel, Bull Barrel profile, 5.56mm chamber and bore and 1:9 twist ratio. The upper includes a low profile gas block and smooth free float tube.