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

by
posted on June 3, 2017
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **

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.

ManufacturerCMMG
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

Latest

Ruger 10/22 Carbon Fiber
Ruger 10/22 Carbon Fiber

Review: Ruger 10/22 Carbon Fiber

Ruger recently released a variant of its popular 10/22 made with modern materials and incorporating performance-minded engineering: the 10/22 Carbon Fiber.

Winchester Celebrates USA 250th With Commemorative Ammo Line

Winchester Ammunition's special line of commemorative ammunition honors the 250th anniversary of the nation's founding, with unique packaging that honors the American heritage.

BANISH Suppressors Introduces BANISH 556

BANISH Suppressors introduced its BANISH 556, a full-auto rated suppressor with controlled-flow technology that the company claims is the "most advanced 5.56 NATO/.223 Rem. suppressor on the market."

The Keefe Report: The Incomparable, Inimitable Phil Schreier—1962-2025

Philip Schreier, director of the NRA Museums, passed away on Dec. 29, 2025, after battling Acute Myeloid Leukemia.

America 250: The Tradition Of The Armed Citizen Lives On

The Declaration of Independence reaffirmed the right to self-determination—and the uniquely American practice of keeping and bearing arms allowed a new nation to thrive.

The Armed Citizen® Jan. 5, 2026

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

Interests



Get the best of American Rifleman delivered to your inbox.