Receivers

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...

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...

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...

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...

Build the ultimate 10mm AR pistol with the BANSHEE Mk10 pistol lower group. Designed to accept Glock-pattern 10mm magazines, BANSHEE Mk10 lower groups are available in Cerakote finishes and come outfitted with a variety of meticulously crafted CMMG parts...

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...

Build the ultimate 10mm AR pistol with the BANSHEE Mk10 pistol lower group. Designed to accept Glock-pattern 10mm magazines, BANSHEE Mk10 lower groups are available in Cerakote finishes and come outfitted with a variety of meticulously crafted CMMG parts...

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...

Machined from billet 7075-T6 aluminum, the AXTS AX556 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the AX556 features the...

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...

Build the ultimate 10mm AR pistol with the BANSHEE Mk10 pistol lower group. Designed to accept Glock-pattern 10mm magazines, BANSHEE Mk10 lower groups are available in Cerakote finishes and come outfitted with a variety of meticulously crafted CMMG parts...

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...

Start your 7.62x39mm build off right. The CMMG Mk47 mid-size platform was designed around the famous Soviet-era cartridge to address the common concerns of 7.62x39mm AR15s. This Mk47 RESOLUTE lower group accepts most conventional AK47 pattern magazines...

Whether you're looking to finish up your next .22 LR build or have a dedicated .22 upper for some cheap plinking, put the 9'' BANSHEE on your list. Designed to work with CMMG .22 AR Conversion Mags and any standard AR15 lower group, this .22 LR upper...

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...