NRA Gun of the Week: CMMG MkW-15 XBE Anvil Rifle

posted on June 3, 2017

CMMG Inc. is known for its 22 Long Rifle AR-conversion kits and its Mutant rifle—a 7.62x39 mm-chambered rifle that accepts AK-47 magazinesbut is built on the design principals of the AR-15. That rifle led to the company’s latest thumper, the Anvil. CMMG’s MkW-15 XBE Anvil is chambered for the heavy-hitting .458 SOCOM—a cartridge designed for use in CQB environments by U.S. Special Forces. Inevitably, the cartridge found its way into the civilian market, and its capability covers myriad purposes—from defending ones home to hunting big game and vermin such as wild hogs. 

Check out this week’s NRA Gun of the Week video hosted by American Rifleman's Kelly Young.

Model: MkW-15 XBE Anvil
Action: gas-impingement-operated, semi-automatic center-fire rifle
Chambering: .458 SOCOM
Receivers: 7075-T6 aluminum
Barrel: 16.10” 416 stainless steel; 1:14” RH twist rifling, SV muzzle brake
Hand Guard: CMMG 15" RKM15 KeyMod
Shoulder Stock: Magpul CTR 6-Position
Trigger: single-stage; 5-lb., 15-oz. pull
Sights: none; Picatinny rail for optics
Weight: 7 lbs., 8 ozs.
Magazine:10-round-capacity, detachable box
MSRP: $1,950

Additional Reading:
Tested: CMMG MkW-15 XBE Anvil
Big-Bore AR Cartridges


Carcano TS Carbine
Carcano TS Carbine

I Have This Old Gun: Carcano TS Carbine

For almost 55 years, the Carcano served the Kingdom of Italy. When it was adopted in 1891 as the country’s first smokeless-powder firearm, it was a cutting-edge design that defined the modern service rifle.

The Armed Citizen® April 15, 2024

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Handloads: Getting A Carcano Into The Field

The accuracy of 6.5x52 mm Italian-chambered Carcano rifle is atrocious, and ammunition is scarce at best. However, for budget-minded shooters and collectors, they are still a popular option.

Preview: PMAG +5 Extension With Springfield Armory Logo

Requiring only the use of two included Allen wrenches and simple instructions, the Springfield Armory +5 extension is a quick and easy way to increase the capacity of a 5.56 NATO-size Magpul PMAG.

South Of The Border Turkey Shoot

Along the U.S.-Mexico border where the cultures of the two nations merge, a sport-shooting game has emerged—the Silhoueta Shoot. Authors Ben Avery and Gene B. Crum take a close look and report their findings.

New For 2024: Traditions Pro Series

Despite its name and extensive line of traditionally styled muzzloaders, Traditions Performance Firearms is at the cutting edge of modern muzzleloading and hunting firearms. New for 2024, Traditions is adding Pro Series models to its most popular firearm lines.


Get the best of American Rifleman delivered to your inbox.