The .308 Mk3 CBR Upper Group features a 16″ nitrided 416 stainless steel medium taper profile barrel in 308 WIN.
The Mk3 CBR is equipped with CMMG’s own SV muzzle brake and RKM15 KeyMod hand guard.
- Caliber: 308 WIN
- Barrel: 16.1 1:10 twist, medium tapered, 416SS, SBN
- Muzzle: CMMG SV brake, threaded 5/8-24
- Hand Guard: CMMG RKM15
- Receivers: Billet 6061-T6 AL LR308 type
- Gas Port Location: Rifle
Upper Group consists of:
- Upper Receiver Assembly (Upper Receiver, Ejection Port Cover)
- Barrel Sub-Assembly
- Hand Guard and Barrel Nut
- Charging Handle
- Bolt Carrier Group