Receivers

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...

With a commanding barrel length of 24'' this .308 WIN ENDEAVOR Mk3 Upper Group is purpose built for long-range performance. Quality is always top concern, that's why the 416 stainless steel barrel is nitrided for maximum corrosion resistance that doesn't...

RADIAN BUILDER KIT

This is Overthrow. An open mag well helmet design, with battle worn dents, sword gashes and crack lines. Leave it anodized black, give it a Spartan style, a Viking theme ... the customization opportunities with this one are endless.

Designed to accept and function properly with 10mm Glock and SGM magazines, the Mk10 lower receiver assembly is built to the same fit and finish expected of any CMMG product. Featuring an integrated trigger guard, last round bolt hold open, as well as an...

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...

Receivers Machined from Aluminum Forgings 7075-T6. Receivers Hardcoat Anodized per MIL-A-8625F, Type III, Class 2. Staked M4 Lock Nut. USGI H Buffer (1 USGI Tungsten, 2 Steel). Low Shelf for RDIAS installation. Low Shelf for Accuwedge use. Fire Controls...

At just 10.5'' this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 that's lightweight and perfectly sized to go anywhere. This 5.56mm BANSHEE upper group is built on the Mk4 - AR15 platform,...

Perfect for building a .22 LR AR, this BANSHEE Mk4 pistol lower replaces the FASTBACK buffer tube and RIPBRACE found on other CMMG AR pistols with our pic rail receiver end cap. By removing the buffer system, not needed for dedicated .22 LR uppers,...

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...

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...

Top off your next build with this RESOLUTE Mk4 Upper Group. Chambered in 5.56x45mm, this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Available in different Cerakote finishes, all CMMG Upper...

Accepting Sig Sauer M17/P320 magazines, the CMMG Mk17 delivers a new level of performance to the PCC world. Not only is it on an elite playing field in terms of fit and function, the Mk17 brings out all the features youve come to expect from CMMG,...

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 CAR816 A2 is a short-stroke push rod gas piston rifle chambered in 5.56x45mm NATO; the piston is controlled by a three-position gas valve. It's manufactured with the best materials such as a Carpenter 158 bolt housed in an anti-tilt carrier, 4150 CMV...

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...