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...

Available in different Cerakote finishes, the CMMG Mk3 lower receiver is just the thing you need to start an AR10 style build. Based on the DPMS LR308 gen 1 high pattern design, the Mk3 platform is compatible with the most common and popular .308 AR...

Personal defense calibers like 5.7x28mm have become a big thing in the last few years, and if you're looking for PDW ballistics and the classic style and balance of a carbine then youre in luck. Combine this RESOLUTE Upper Group with either the CMMG Mk57...

Upper Group features: BCM SS410 16'' Mid Length Upper Receiver Group w/ BCM KMR ALPHA 13'' Handguard, 1/7.7 Twist Ionbond Finish on barrel.

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...

Originally created for use in subsonic/suppressed applications, .300 BLK has evolved into a very capable caliber, available in a variety of subsonic and supersonic loadings. Whether it's hunting, personal defense, or target shooting, this .300 BLK...

Designed to be a flat shooting round at medium to long ranges, 6.5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the Mk4 platform and...

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...

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...

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...

While the ENDEAVOR Mk4 - AR15 lower receiver might meet mil-spec, every other part on this lower group goes beyond to meet CMMG specs. Available in your choice of different Cerakote finishes, this ENDEAVOR lower group comes with the Magpul MOE Rifle...

Created to combine the best attributes of 9mm and 45 ACP, .40 S&W has proven itself to be an incredibly capable round. Now anyone looking to build a powerful and ultra-compact .40 S&W personal defense weapon can in no time. Simply pair with a CMMG MkGs...

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...

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...

These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired.

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...