CMMG AR-15 Evolution Sierra Complete Upper Assembly .22 LR 16" Barrel Low Pro Railed Gas Block Flat Top Receiver Black WASP Finish No Magazine

CMMG, Inc.
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The Sierra .22 Caliber AR-15 upper maintains compatibility with all the same parts and accessories that fit your full caliber AR's, including the lower receiver.

Comes with non-functional forward assist plug. May be upgraded to fully functional forward assist by upgrade below.

Specifications and Features:
Black Phosphated .22 LR Action
16 inch W.A.S.P. steel barrel
1:16 inch twist
Carbon Steel Barrel
Mil-Spec 1/2x28 threaded muzzle
Piccatinny Railed, Low Profile Front Sight Base
Live Round Extraction
Anti-Jam Charging Handle
Firing Pin retained by standard AR15/M16 Cotter pin
Mil-Spec Anodized & Teflon Coated
A2 Flash Hider
Gas Deflector
Low Profile Single Rail Gas Block
Upper does not come with a magazine