Receivers

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...

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...

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...

Built to be the ultimate base to start a new .45 ACP AR pistol build, the BANSHEE MkG lower group is ready to go out of the box, pair the lower with a CMMG .45 ACP Radial Delayed Blowback upper and hit the range. This lower is designed to accept...

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...

For years Glock-pattern magazines have been one of the most trusted, commonly available magazines for handguns and pistol caliber carbines. The MkGs RESOLUTE gives shooters the opportunity to build a pistol caliber carbine like no other, accepting both...

For years Glock-pattern magazines have been one of the most trusted, commonly available magazines for handguns and pistol caliber carbines. The MkGs RESOLUTE gives shooters the opportunity to build a pistol caliber carbine like no other, accepting both...

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...

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...

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...

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...

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...

Don't build a .22 LR that looks like an AR, build an AR that happens to be chambered in .22 LR. Equipped with a 4.5'' barrel, the shortest CMMG offers in any caliber, this BANSHEE upper group is built on the Mk4 platform, and is designed to work with any...

As the original 9mm platform from CMMG, the Mk9 has evolved over time with improvements like Radial Delayed Blowback to provide shooters a platform with less felt recoil and a lighter BCG. Designed to accept Colt-style 9mm SMG magazines, this RESOLUTE...

Don't build a .22 LR that looks like an AR, build an AR that happens to be chambered in .22 LR. Equipped with a 4.5'' barrel, the shortest CMMG offers in any caliber, this BANSHEE upper group is built on the Mk4 platform, and is designed to work with any...

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.