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CMMG MK4 PDW 9" .22LR Complete KeyMod Upper

CMMG MK4 PDW 9" .22LR Complete KeyMod Upper

MSRP $599.95
SALE PRICE: $449.95
Savings: $150.00

Product Code: 22B8F26


CMMG MK4 PDW 9" .22LR Complete KeyMod Upper

The Mk4 PDW SBR or Pistol .22 LR dedicated Upper Group introduces CMMG's RKM series of KeyMod free float hand guards. Includes a nitrided 4140 CrMo steel barrel.

  • Caliber: 22 long rifle
  • Barrel: 9", 1:16 twist, M4 profile, 4140 CM, SBN
  • Muzzle: A2 comp., threaded 1/2-28
  • Hand Guard: CMMG RKM11 KeyMod hand guard
  • Receiver: Forged 7075-T6 AL M4 type upper

Upper Group consists of:

  • Upper Receiver Assembly (Upper Receiver, Ejection Port Cover, Forward Assist, Gas Deflector)
  • Barrel Sub-Assembly
  • Hand Guard and Barrel Nut
  • Charging Handle
  • Bolt Carrier Group

Average Rating: 5 of 5 Total Reviews: 1 Write a review »

  0 of 0 people found the following review helpful:
Great for a pistol or SBR March 25, 2018
Reviewer: Mr. Smith from United States  
Very nice & compact, but haven't shot it yet.

Surprised the charging handle is polymer.  There is a Patent # on it, which is the reason I noticed. It feels quite sturdy, definitely enough to be on a .22LR upper.

Gas Deflector is different then pictured (L shaped instead of the usual 1/2 dome) and is also polymer.

The bolt assembly is exactly like my other .22LR bolt assembly (which runs great), except there is a drop-in polymer Forward Assist Adapter.

Everything else is exactly what I expected.

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