Receivers

After more than a century of faithful use by shooters all over the world, 45 ACP is a cartridge that has proved itself time and time again. For those looking for a modern platform in a classic chambering, look no further than the BANSHEE MkG upper group...

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...

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...

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...

Precision machined from forged 7075 T6 aluminum, the CMMG Mk4 AR15 lower receiver is the quality mil-spec lower ready to be the foundation for your next build. The Mk4 stripped lower comes standard in a black hard coat anodized finish and can be...

BCM Lower Group w/BCMGUNFIGHTER Stock Mod-0-SOPMOD (Wide-body) - Black

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...

The Geissele Super Duty Stripped Lower, is precision machined from 7075-T6 aluminum forging and quality assured to the mil-spec standard at the Geissele facility. The Super Duty stripped lower is the heart of your next build, ready to accept your...

Start your AR10 upper build with looks and quality like no other. The CMMG Mk3 upper receiver assembly, based on the DPMS LR308 gen1 high-pattern design, gives shooters an AR10-style platform with the widest range of compatible parts and accessories on...

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...

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...

Precision machined to correct Mil-Specs from 7075 T6 Forgings extension, providing the user with superior strength when dropped or when mortaring malfunction clearance drills. Includes Mil-Spec Forward Assist with heat treated tool steel pawl, with press...

If you're looking for the ultimate pistol caliber carbine chambering, don't sleep on .40 S&W. This MkGs RESOLUTE Upper Group is designed to extract the full, hard-hitting performance of .40 S&W in a package thats easy to shoot with style in a class of...

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...

Chambered in 6mm ARC, this RESOLUTE Upper Group is designed to pair with any standard AR15 pattern lower group. Harness the capability of 6mm in this uniquely designed RESOLUTE 16.1'' upper. Available in different Cerakote finishes, all CMMG Upper Groups...

Gaining more acceptance as the go to personal defense caliber for many shooters in recent years, 5.7x28mm has proven itself to be well suited for the job. With incredibly flat shooting performance and low recoil, 5.7x28 excels at closer ranges while...