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Mfg Item #: 55B66C7
The Mk4 3GR was developed for both the novice and the veteran 3-Gun shooter. The Mk4 3GR features an 18 416 stainless steel medium taper profile barrel CMMG's SV muzzle brake and RKM14 KeyMod hand guard. - Caliber: 5.56mm - 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
| Barrel | 18 medium weight taper profile |
|---|---|
| Caliber | 5.56mm |