CMMG Rolls Out New MK4 RCE AR-15

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(GunReports.com) — For 2014, Fayette, Missouri-based CMMG is delivering another precision-machined AR rifle, the new Mk4 RCE, available in 5.56x45mm NATO or .300 AAC Blackout.

At the Mk4 RCE’s core is an M4 upper receiver and an AR-15 lower receiver, both forged from 7075-T6 aluminum. The 16-inch barrel is a matte-finished 416 stainless-steel unit with 1:7 rifling.

The $1400 Mk4 RCE weighs 6.5 pounds unloaded and 7.5 pounds with a full 30-round PMAG. It is 33 inches long with the stock collapsed and is 36.4 inches in length with the stock extended.

The RCE includes an RKM14 KeyMod free-floating hand guard with a 1913 Picatinny rail on top. The KeyMod slots are found at the 3, 6 and 9 o’clock positions and offer shooters a low-profile mounting alternative to the M1913 Picatinny rail.

For accessories that are not yet KeyMod compatible, users can purchase a separate CMMG 5-slot Picatinny adapter rail that can be easily attached to any of the KeyMod slots for optimal placement of the accessories.

The Mk4 RCE is equipped with a CMMG SV muzzle brake that helps reduce recoil and increase muzzle control. The muzzle brake is built from nitride-finished 4140 steel so it can withstand harsh conditions.

Additional components include a Geissele Automatics SSA 2-stage trigger, a Magpul CTR adjustable stock and Magpul MOE pistol grip and trigger guard. One Magpul PMAG with a 30-round capacity is included with the rifle.

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