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CMMG Upper Mk4 Rce 300 Blk Whisper

Product Code : 815835016627


Mfg Item #: 30BC3A7

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Caliber: 300 BLK - Barrel: 16 medium weight taper profile - Muzzle: CMMG SV brake threaded 5/8-24 - Hand Guard: CMMG RKM14 KeyMod hand guard - Receiver: Forged 7075-T6 AL M4 type - The Mk4 RCE is one of CMMG's premiere uppers. The Mk4 RCE features a 16 416 stainless steel medium taper profile barrel CMMG's own SV muzzle brake and RKM14 KeyMod hand guard.

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