$696.95
The CMMG 30B442D Upper Group, Mk4 HT, 300 BLK, SBN features CMMG’s RKM11 KeyMod free float hand guard. The CMMG 30B442D Upper Group, Mk4 HT, 300 BLK, SBN has a nitrided 4140 CrMo steel barrel in a heavy taper profile in a 300 Blackout format.
PRODUCT SPECIFICATIONS | |
Caliber: 300 Blackout Barrel: 16.1″, 1:7 twist, heavy taper, 4140CM, SBN Muzzle: thread protector, threaded 5/8-24 Hand Guard: CMMG RKM11 KeyMod hand guard Upper Rcvr: Forged 7075-T6 AL M4 type upper Gas Port Location: Carbine |
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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