CMMG’s FourSix — the AR in 4.6x30mm

CMMG announced today the release of the FourSix, the first-ever AR to hit the civilian market chambered in 4.6x30mm.

More about the CMMG FourSix

With an impressive 40-round magazine capacity, light recoil, and great penetration at close distances, CMMG’s FourSix is here to reimagine the Personal Defense Weapon.

FourSix chambered in 4.6x30mm. [Photo courtesy of CMMG]

The 4.6x30mm round is best known for its superior penetration at close distances and for its extremely flat-shooting ballistics out to 150 yards. With its lightweight characteristics and relatively small dimensions, the 4.6x30mm cartridge allows the shooter to carry more ammo, which means more follow up shots when needed most. The soft recoil, combined with a modified direct impingement operating system, allows users to make rapid shots down range and on target.

4.6x30mm small, lightweight cartridge
4.6x30mm small, lightweight cartridge. [Photo courtesy of CMMG]

CMMG’s FourSix is built on the company’s BANSHEE Mk4 platform while pioneering new technologies with its patent-pending Micro Gas Block and patent-pending CMMG 40RD 4.6x30mm Magazine. It comes standard with an 8-inch barrel and features AR-15 controls and modularity. Best of all, the magazine will seat into a standard AR-15 sized magwell, which means users can pair an existing AR-15 lower receiver with a CMMG FourSix upper receiver and the patent-pending CMMG 40RD 4.6x30mm Magazine, giving you the opportunity to ship FourSix components directly to your home.

CMMG FourSix featuring AR15 controls and modularity.
According to CMMG, the FourSix built on the company’s Mk4 platform featuring AR15 controls and modularity. [Photo courtesy of CMMG]

First introduced in 1999, the 4.6x30mm cartridge is known for its pairing with the Heckler & Koch MP7. By design, the 4.6x30mm is a relatively small and lightweight cartridge with minimal felt recoil meant to compete with the 5.7x28mm. There has never been a 4.6x30mm chambered firearm released in the U.S. civilian market until now.

About CMMG

CMMG was established in 2002, when John, Jeff, Gretchen, and Stephanie Overstreet made the decision to create a quality AR rifle that can be afforded by everyone. Since that time, things have continued to get better and better. Although the nature of our business continues to evolve, one thing does not—our commitment to meet each and every morning to pray for God’s wisdom in managing the enormous responsibility that comes with this business. By His grace, we have grown every year! CMMG is constantly looking for new ways to improve our products, processes and company at large. Both our customer service and product lineup continue to be second to none, and all of our rifles and firearms parts are made in the United States from the best materials available. CMMG guarantees its products against defects in material or workmanship for the life of the product. CMMG Inc. will repair, replace or substitute any product(s) if a defect in material or workmanship is found.