ATI Alpha Maxx RIA 300 Blackout | 16″ Barrel | ATIGAX3009ML

The American Tactical / ATI Alpha Maxx RIA is a semi-automatic rifle chambered in .300 AAC Blackout built around a polymer upper/handguard and an ATI MM4 synthetic stock. It ships with a 16″ threaded barrel, a 9″ M-LOK handguard for accessories, flip-up front and rear sights, and one 30-round magazine. The design suits short- to medium-range work where .300 Blackout’s ballistics are preferred.

This rifle pairs well with a low- to mid-power variable optic under $1,000 such as the Vortex Strike Eagle 1-6×24 for fast target acquisition at close range and sufficient clarity for longer shots within the cartridge’s effective envelope. Applications include suppressed range work and short- to medium-range hunting or precision shooting.

Product Specifications

• The manufacturer is American Tactical / ATI (AMERICAN TACTICAL, INC.).
• The model is Alpha Maxx RIA.
• The caliber is .300 AAC Blackout.
• The action is Semi-Auto.
• The barrel measures 16 inches and is threaded for muzzle devices.
• The barrel is threaded with a 5/8×24 thread pattern.
• The handguard is a 9-inch M-LOK polymer for accessory mounting.
• The stock is an ATI MM4 black synthetic stock.
• The rifle includes flip-up front and rear sights.
• The finish is matte black.
• The capacity is 30 + 1 rounds and the package includes one magazine.
• The overall length is 43 inches.
• The weight is approximately 5.50 lbs.
• The twist rate is 1:8.
• The UPC is 810113113838.

Built with practical features and a focus on modularity, the Alpha Maxx RIA is a straightforward .300 Blackout carbine that offers a familiar AR-style control layout, a short M-LOK handguard for attachments, and a threaded barrel for muzzle device or suppressor compatibility. It is suitable for shooters who want a purpose-driven platform for suppressed shooting, training, or short-range hunting where .300 Blackout performs well.

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