CMMG Mk4 RCE 5.56mm Upper Receiver (CMMG-55B5949)

CMMG Mk4 RCE 5.56mm Upper Receiver (CMMG-55B5949)


We will price match any currently priced, in stock item. In some rare instances we may not be able to match a price but will do all that we can to give you the best deal possible. (We cannot match the price if it is under our cost) Please call store at 1.800.486.7497 to check availability for immediate pickup. Please review the Terms and Conditions HERE.

Type: AR Uppers

  • 416 stainless steel medium taper profile barrel
  • CMMG's own SV muzzle brake
  • RKM14 KeyMod hand guard
  • Forged 7075-T6 receiver
  • Black Finish
Caliber 5.56mm
Barrel 16"” medium weight taper profile
Muzzle CMMG SV brake, threaded 1/2-28
Hand Guard CMMG RKM14 KeyMod hand guard
Receiver Forged 7075-T6 AL M4 type

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