CMMG Mk4 3GR 5.56mm Upper Group BLACK
We have 2 of these coming on our next shipment and can be Pre-ordered.
The Mk4 3GR Upper Group features an 18″ 416 stainless steel medium taper profile 5.56x45mm barrel. This Upper Group is equipped with CMMG’s SV muzzle brake and RKM14 KeyMod hand guard.
Barrel: 18 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
Upper Group consists of:
Upper Receiver Assembly (Upper Receiver, Ejection Port Cover, Forward Assist)
Hand Guard and Barrel Nut
Bolt Carrier Group