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CMMG

CMMG MK4T UPPER - 5.56 NATO

  • Sale
  • $624.99
  • Regular price $699.95


The MK4 T Upper Group introduces CMMG’s RKM series of KeyMod free float hand guards. Nitrided 4140 CrMo steel barrel in a medium taper profile.

Caliber: 5.56mm / Mil Spec
Barrel: 16” medium weight taper profile / 1:7 Twist / Chrome Moly Vanadium Steel
Muzzle: A2 comp., threaded 1/2-28
Hand Guard: CMMG RKM11 KeyMod hand guard
Receiver: Forged 7075-T6 AL M4 type / A3 Flat-Top

Includes Bolt Carrier Group & Charging Handle