Receivers

When it comes to picking a lower for your 5.7x28mm carbine or SBR, this RESOLUTE Mk57 lower group capitalizes on cross-compatibility, giving you the ability to use the same magazines on your Mk57 rifle and other firearms that utilize FN Five-seveN...

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...

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...

Built with the same attention to detail you would come to expect from CMMG, this RESOLUTE Mk3 lower group based on the DPMS Gen 1 high-pattern design, giving shooters the most popular and widely supported AR10 style platform. Shooters that prefer...

Designed to feed any of the 5.7x28mm upper groups, the BANSHEE Mk57 pistol lower group is feature packed and built with unmatched attention to detail. Whether you have a collection of FN Five-seveN style magazines already or like the notion of being able...

Designed to accommodate Glock-pattern 10mm magazines, the RESOLUTE Mk10 lower group give shooters the ability to build a unique, feature packed 10mm pistol caliber carbine/rifle. Available in Cerakote finishes, each Mk10 rifle lower comes with a suite of...

Designed exclusively around the 7.62x39mm cartridge, this Mk47 BANSHEE pistol lower group is made to accept most AK47-style magazines. The Mk47 is CMMG's mid-size platform, utilizing beefier components and receivers than a standard AR15/Mk4 without the...

Made by Bravo Company MFG, Inc. (BCM) These Barreled Upper Receiver Groups are designed for shooting professionals with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired.

Whether you're looking to build a AR15 for plinking, training, or small-game hunting, this .22 LR RESOLUTE Upper Group fits the bill perfectly. The Mk4 .22 LR upper is designed to work with any standard AR15 lower and CMMG .22 Conversion Magazines...

Designed to feed any of the 5.7x28mm upper groups, the BANSHEE Mk57 pistol lower group is feature packed and built with unmatched attention to detail. Whether you have a collection of FN Five-seveN style magazines already or like the notion of being able...

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...

Designed exclusively around the 7.62x39mm cartridge, this Mk47 BANSHEE pistol lower group is made to accept most AK47-style magazines. The Mk47 is CMMG's mid-size platform, utilizing beefier components and receivers than a standard AR15/Mk4 without the...

There is no doubt just how capable and popular the AR15(Mk4) platform is, and while most plain mil-spec AR15 lowers could do the job for your next build, you don't have to settle for just good enough. Available in different Cerakote finishes, this...

There is no doubt just how capable and popular the AR15(Mk4) platform is, and while most plain mil-spec AR15 lowers could do the job for your next build, you don't have to settle for just good enough. Available in different Cerakote finishes, this...

CMMG offers a variety of lower platforms that are optimized for use with our 9mm Radial Delayed Blowback uppers. The Mk17, being the latest iteration of pistol mag lower platforms, utilizes Sig Sauer P320/M17/M18 pattern magazines. Whether you already...

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...