The ATI Alpha Maxx in 5.56 (brand part no. GAX55610ML) is a semi-automatic AR-15-pattern rifle from American Tactical, built as a straightforward, dependable option for the range, training, or home defense. It runs a 16-inch barrel chambered in 5.56 NATO, a proven combat-and-range cartridge with wide ammunition availability. A free-float M-LOK handguard gives shooters room to add optics, lights, or a foregrip, and the 6-position adjustable stock lets the rifle fit shooters of different sizes or wearing different gear. Feeding from a 30-round magazine, the Alpha Maxx is set up to run as soon as it is out of the case, whether that means a day at the range or a dedicated home-defense role.

Key Specifications

• Chambered in 5.56 NATO, a widely available cartridge suited to range use, training, and defense.
• The 16-inch barrel keeps the rifle compact and maneuverable while staying within rifle-length regulations.
• A free-float M-LOK handguard provides mounting space for optics, lights, and other accessories.
• The 6-position adjustable stock allows the length of pull to be tailored to the shooter.
• It feeds from a 30-round magazine, giving ample capacity between reloads.
• This rifle runs a semi-automatic AR-15-pattern action, the most widely supported rifle platform in the country.

Frequently Asked Questions

What caliber does this rifle shoot? It is chambered in 5.56 NATO, a widely available round suited to range use and defense.

Is the stock adjustable? Yes, the 6-position stock adjusts to fit different shooters and setups.

Buy the ATI Alpha Maxx 5.56 16-Inch Rifle

The Alpha Maxx is a solid, no-frills entry point into the AR-15 platform for shooters who want a dependable rifle without extra cost. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more of the American Tactical / ATI lineup in our semi-auto rifles category.