Receivers

The CAR816 A2 is a short-stroke push rod gas piston rifle chambered in 5.56x45mm NATO; the piston is controlled by a three-position gas valve. It’s manufactured with the best materials such as a Carpenter 158 bolt housed in an anti-tilt carrier, 4150...

The Jack - Gen2 features now include a threaded bolt catch pin, reduced weight and improved styling - and lower costs to you.

The Geissele Super Duty MOD1 Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 11.5'' complete upper chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD muzzle device mounted...

Designed for use with CMMG .45 ACP MkG uppers, the MkG lower group accepts Glock-pattern magazines while still delivering essential AR15 features and function like last round bolt hold open. Available in different Cerakote finishes, RESOLUTE MkGs lowers...

RADIAN BUILDER KIT

Designed to be a flat shooting round at medium to long ranges, 6.5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the Mk4 platform and...

The Radian Model 1 Upper Receiver and Hand Guard are precision CNC machined as a matching set, structurally reinforced in critical areas for improved strength and rigidity. The upper receiver is cut from billet 7075-T6 aluminum and assembled with dust...

Whether you're starting or expanding your Mk47 collection, this 8'' 7.62x39mm BANSHEE upper group is sure to be a blast. Combining elements of ARs and AKs, the Mk47 is CMMG's midsize platform sitting between the AR25 - Mk4 and AR10-size - Mk3 platforms...

Designed from day one for the AR15 platform, 300BLK was made to utilize many of the most common AR components in existence. With the 12.5'' BANSHEE upper group you can build your next 300BLK AR with character like no other. Available in Cerakote...

Don't settle for anything less when it comes to finding the right lower for your AR10 pistol build. Since there is no official ''mil-spec'' for AR10 style firearms and components, CMMG based the Mk3 platform off the popular and widely supported DPMS Gen...

Built on the mid-size Mk47 platform that falls between AR15 and AR10/LR308 size, this Mk47 RESOLUTE Upper Group is made to be the one of the most robustly built 7.62x39mm AR uppers in existence. Due to the increased receiver and component size, Mk47...

UPPER, SIGM400, 5.56 NATO, 11.5IN

Kick off your next 9mm AR pistol build with the BANSHEE Mk9 pistol lower group. Made to accept Colt-style 9mm SMG magazines, the Mk9, CMMG's original 9mm platform, is designed to pair with any of the 9mm Radial Delayed Blowback uppers. BANSHEE Mk9 lower...

Whether it's the classic style or forward assist functionality that piques your interest, the Mk4 AR15 upper receiver assembly has been a staple in the CMMG lineup. Available in different Cerakote finishes, this mil-spec workhorse has been proven over...

The Radian Model 1 Upper Receiver and Hand Guard are precision CNC machined as a matching set, structurally reinforced in critical areas for improved strength and rigidity. The upper receiver is cut from billet 7075-T6 aluminum and assembled with dust...

The CAR814 A2 PATROL is a centerfire, direct impingement gas-operated tactical rifle chambered in 5.56x45mm NATO, which has been designed, engineered, and tested in accordance to NATO standards. This rifle was designed with military and law enforcement...