CMMG AR-15 Dedicated Upper .22LR 16" WASP Barrel 1:16" Twist Flat Top Receiver Black Finish No Magazine or Sights

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

Comes with a non-functional forward assist plug. May be upgraded to a fully functional forward assist.

Specifications and Features:
- Black phosphated .22LR action
- 16 inch W.A.S.P. carbon steel barrel
- 1:16 inch twist
- Mil-Spec 1/2x28 threaded muzzle
- Low Profile gas block with Picatinny rail
- Live round extraction
- Anti-jam charging handle
- Firing pin retained by standard AR-15/M16 cotter pin
- Mil-Spec M4 receiver with ceramic finish
- A1 flash hider
- Gas deflector
- No sights
- No magazine included
- NOT compatible with same plane (low profile) front sights