Receivers

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...

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...

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...

Having more options is always better. The Mk17 platform is another evolution of CMMG's 9mm lineup. This BANSHEE pistol lower group gives shooters the ability to use any new or existing CMMG 9mm Radial Delayed Blowback upper and utilize Sig...

The Super Duty Receiver Set includes a Geissele Super Duty stripped lower and a Geissele Stripped Upper receiver. This high quality receiver set is precision machined from 7075-T6 aluminum forging and finished in durable Type 3 hardcoat anodize. With...

Lower Receiver Assembly, Mk57, Midnight Bronze

RADIAN BUILDER KIT

Building an AR in a larger caliber like .308 Win doesn't mean you have to sacrifice portability. The BANSHEE Mk3 upper group chamber in .308 Win is just the thing to complete the go anywhere .308 AR10. The CMMG Mk3 platform is based on the popular DPMS...

If you're looking to build the most compact 9mm AR then look no further. CMMG's 9mm RDB uppers feature uncompromised design and engineering with styling that is never mistaken for something else. Having more options is always better, like what magazines...

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...

Accepting Sig Sauer M17/P320 magazines, the CMMG Mk17 delivers a new level of performance to the PCC world. Not only is it on an elite playing field in terms of fit and function, the Mk17 brings out all the features youve come to expect from CMMG,...

Build the ultimate .308 Win carbine with the RESOLUTE Mk3 upper group. Combining heavy hitting performance with styling in a league of its own, there is no doubt that this upper will set your rifle apart from the crowd. There can be a lot of confusion...

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...

As CMMG's oldest 9mm platform, the Mk9 is continuing to go through changes to become even better than before. Introducing, the new and improved Mk9, now utilizing CMMG's patented Radial Delayed Blowback operating system. Radial Delayed Blowback...

BCM Standard 14.5"" M4 Carbine Complete Upper Receiver Group w/ QRF-7 Handguard

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...