CMMG, Inc Upper-Sierra .22LR 16", No FSB 22B7CC2

Sierra .22 LR Upper Receiver w/Low Profile Railed GB



.22 Evolution Sierra Dedicated Upper



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.



- Black Phosphated .22LR Action

- 16 inch W.A.S.P. steel barrel

- 1:16 inch twist

- Carbon Steel Barrel

- Mil-Spec 1/2x28 threaded muzzle

- Picatinny Railed, Low Profile Front Sight Base

- Live Round Extraction

- Anti-Jam Charging Handle

- Firing Pin retained by standard AR15/M16 Cotter pin

- Mil-Spec M4 Receiver with Ceramic Finish

- A1 Flash Hider

- Gas Deflector

- Low Profile Single Rail Gas Block



Patent Pending

Upper Does Not Include Magazine

Enter your ZIP code for an exact shipping cost on this item. Hazardous-materials fees, where they apply, are included in the total shown.

Read our full shipping policy

Firearms must ship to a licensed dealer (FFL), who completes the transfer and the required background check when you collect the item.

How FFL transfers work · Terms of sale · Product and legal restrictions