Leveraging their proprietary POWERBOLT technology found on the CMMG MUTANT, CMMG is now offering a rifle chambered in 458 SOCOM. The CMMG MkW ANVIL, is an Ar-15 patterned rifle that features an adjustable gas system, and a mid sized receiver that falls in between the Ar-15 and the Ar-10 in regards to size. The POWERBOLT was initially used on the 7.62 x 39 CMMG MUTANT, and was  designed to accommodate the 7.62 x 39 cartridge. In the past companies would take a standard Ar-15 bolt and machine the bolt face to accept the 7.62 x 39 round. This process would leave very little metal on the bolt face, and the lugs would prematurely crack within several thousand rounds. A typical bolt should last around 10,000 rounds. The CMMG MkW ANVIL feeds from standard Ar-15 magazines, and comes in several configurations and price points.

The 7.62 x39 round compared to the massive .458 SOCOM.

CMMG MkW ANVIL chambered in .458 SOCOM. The MkW feeds from a standard Ar-15 magazine.

The CMMG MkW ANVIL is also available as a Short Barrelled Rifle.

Key Specs of the basic MkW ANVIL include;

BARREL: 16.1” 1:14 Twist, Medium Taper 416SS SBN Barrel
MUZZLE: CMMG SV Brake, Threaded 5/8 – 32
HAND GUARD: CMMG RKM15
FURNITURE: A2 Pistol Grip, M4 carbine stock with 6-pos mil-spec receiver extension
RECEIVERS: Billet 7075-T6 AL, Mid-Size MUTANT Platform
TRIGGER: CMMG Single Stage Mil-Spec style trigger
WEIGHT: 7.5 lbs (UNLOADED)
LENGTH: 33.5” (STOCK COLLAPSED)
GAS PORT LOCATION: Carbine with SLR adjustable gas block

Please note other models include enhanced triggers as well as Magpul furniture.