CMMG 55B66C7 Upper Group, Mk4 3GR, 5.56mm
February 18, 2018
CMMG 55B9127 Upper Group, Mk4 HT, 5.56mm
February 18, 2018
CMMG 55B785C Upper Group, Mk4 HT, 5.56mm, SBN
$696.95
CMMG 55B785C Upper Group, Mk4 HT, 5.56mm, SBN
The CMMG 55B785C Upper Group Mk4 HT, 5.56mm, SBN features CMMG’s RKM11 KeyMod free float hand guard. The CMMG 55B785C Upper Group Mk4 HT, 5.56mm, SBN has a nitrided 4140 CrMo steel barrel in a heavy taper profile in a 5.56mm format.
| PRODUCT SPECIFICATIONS | |
| Caliber: 5.56mm Barrel: 16.1″, 1:7 twist, heavy taper, 4140CM, SBN Muzzle: Thread protector, threaded 1/2-28 Hand Guard: CMMG RKM11 KeyMod hand guard Receiver: Forged 7075-T6 AL M4 type |
Upper Group consists of: Upper Receiver Assembly (Upper Receiver, Ejection Port Cover, Forward Assist) Barrel Sub-Assembly Hand Guard and Barrel Nut Charging Handle Bolt Carrier Group |
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