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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 
Total number of Reviews: 2

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5.0 5
"Awesome quality upper is machined aluminum, not polymer, which is great."
2.0 5
"Got it to shoot cheap .22 LR instead of .223. So far, it does not work well with Golden bullets or Federal auto match or Winchester bulk ammo. I haven't tried CCI yet, but the reason I got this was to shoot cheap bulk .22 LLR ammo. For this price, I hoped it would function well, but so far I'm not impressed. Now I'm thinking I should have gotten a different .22 LR gun, like the GSG-5 or Ruger 10/22. Both were less than $350 and maybe they would function with cheap bulk .22 LR ammo."