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CMMG 6.8mm Upper, 16" 1:11 M4 Barrel, Gas Piston, Flat Top, AR-15, WASP Black Finish
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CMMG Upper 6.8MM 16" Black 1:11 Gas Piston AR Rifles Flat Top CMMG10247
Specifications and Features:
Mil-spec certified 4140 chrome-moly vanadium steel barrel
6.8 SPC II chamber
11 degree recessed target crown
WASP treated barrel, including The chamber, bore and under the front sight base
A2 Flash hider installed with crush washer
M4 Single heat shield Handguard
Forged M4 upper receiver is T marked and has M4 feed ramp cuts
Semi Auto bolt carrier
Mil-spec .250 diameter take-down pins
Railed, rail height gas block
Each barrel is individually magnetic particle tested.
Barrels are engraved CMMG WASP MPC
The upper is built off of our standard forged A3 receiver with M4 feed ramps. The barrel is our 4140 steel, M4 profile, 6.8 SPC Spec II Chamber, 1:11 twist barrel and our proprietary WASP surface treatment.
The piston gas block has a gas shut off setting for use with a suppressor to allow for maximum noise reduction. You must replace the crush washer with a peel washer if you plan to mount your suppressor on the original flash hider. Fits on any standard Mil-Spec lower receiver. All uppers have been factory head spaced and test fired.
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CMMG 6.8mm Upper, 16 1:11 M4 Barrel, Gas Piston, Flat Top, AR-15, WASP Black Finish