Receivers

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...

Explore what's possible with 6.5 Creedmoor with the 24'' ENDEAVOR Mk3 Upper Group. Dedicated to long-range performance above all else, this upper utilizes a nitride-finished 416 stainless steel barrel to better harness the potential of 6.5 Creedmoor...

The Geissele Super Duty MOD1 Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 16'' complete upper chambered in 5.56mm features a nanoweapon-coated HUXWRX Flash Hider-QD muzzle device mounted...

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...

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...

Combining carbine-like ballistic performance and compact size, this 8'' BANSHEE upper group is what you need for the ultimate 9mm AR. Not only does this 9mm upper utilize CMMG's RDB technology, but shooters also have a number of lower/magazine pairing...

All of the same unique features and advantages of the widely favored BCM KMR Handguard, now offered in 100% Aluminum.

Some may question .40 S&W but fans of the .40 know just how capable this cartridge is. Built on the MkGs platform, this 8'' BANSHEE upper group is just the thing for a .40 S&W personal defense weapon with excellent ballistic performance and well-balanced...

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...

DS-15 FX Billet Lower Receiver (Patented)

Designed from day one for the AR15 platform, 300BLK was made to utilize many of the most common AR components in existence. With the 12.5'' BANSHEE upper group you can build your next 300BLK AR with character like no other. Available in Cerakote...

Expertly crafted from aircraft grade aluminum, CMMG Mk4/AR15 upper receiver assemblies come with the ZEROED Polymer Dust Cover pre-installed. Available in different Cerakote finishes, this upper receiver omits the forward assist for those looking for a...

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...

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...

Hellbreakers distinctive appearance is inspired by the P-40 Warhawk, which was one of the United States most-produced fighter planes when World War II began. The œnose art that became a popular military tradition was born from the practical need to...

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...