Cmmg Inc.

Spring Action Carbine Mk3

Spring Action Mk3

Use this with a short barrel on your PS90 SBR build to attach your favorite muzzle device.

Made to common industry specs for tri lug adapters the 9mm adapter allows for quick attachment of DEFCAN-9 suppressors as well as most other standard dimension 9mm tri lug QD mounts

the tri lug adapter a quick push and twist puts the suppressor on and takes it off. Made to common .45 ACP tri lug adapter dimensions the CMMG adapter fits the DEFCAN-45 and most other .45 ACP tri...

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...

Designed to provide superior ballistics and less felt recoil than most pistol caliber personal defense weapons 5.7x28mm has quickly become one of the most popular chamberings in the PDW space. With...

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...

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™...

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 you’re...

Expertly crafted from aircraft grade aluminum CMMG® Mk4/AR15 upper receiver assemblies come with our ZEROED® Polymer Dust Cover pre-installed. This upper receiver omits the forward assist for...

If you’re looking to shoot suppressed or just fine tune your AR to your preferred ammo the CMMG ZEROED Adjustable Gas Block gives you the freedom to dial in the gas system exactly to your...