Receivers

With a commanding barrel length of 24'' this .308 WIN ENDEAVOR Mk3 Upper Group is purpose built for long-range performance. Quality is always top concern, that's why the 416 stainless steel barrel is nitrided for maximum corrosion resistance that doesn't...

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...

Featuring an 8'' barrel, superior ergonomics, and styling that is one of a kind, the Mk10 BANSHEE upper group is just the thing for a personal defense weapon in the best millimeter, 10mm. Pair this Mk10 upper with the Mk10 lower group and all you will...

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...

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...

Looking to build the ultimate 9mm pistol caliber carbine? We have you covered! Utilizing our Radial Delayed Blowback operating system, not only does this upper create one of the softest shooting 9mm PCCs with style that is unmistakably CMMG, this upper...

Chambered in one of the most iconic calibers with over a century of faithful use, the 5'' BANSHEE MkG upper group in 45 ACP is the shortest MkG upper CMMG offers. Ready to pair out of the box with an existing or new MkG lower group, this upper is the...

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...

While the ENDEAVOR Mk4 - AR15 lower receiver might meet mil-spec, every other part on this lower group goes beyond to meet CMMG specs. Available in your choice of different Cerakote finishes, this ENDEAVOR lower group comes with the Magpul MOE Rifle...

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...

Pair this 12.5'' 5.56mm BANSHEE upper group with the Mk4/standard AR15 lower group of your choice to create a compact AR pistol or SBR that blends maneuverability with carbine like ballistic performance. Available in different Cerakote finishes, all...

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...

Perfect for building a .22 LR AR, this BANSHEE Mk4 pistol lower replaces the FASTBACK buffer tube and RIPBRACE found on other CMMG AR pistols with our pic rail receiver end cap. By removing the buffer system, not needed for dedicated .22 LR uppers,...

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...

300BLK has proven itself to be an incredibly capable round in a variety of applications, from close quarters to mid-range and ammo loadings optimized for subsonic/suppressed as well as supersonic, there is use for almost every need. Whether you're...