ATI Alpha Maxx RIA 5.56x45 NATO 16" HBAR 30+1 Semi-Auto AR-15 Rifle

The ATI Alpha Maxx RIA is a semi-automatic AR-15 platform rifle chambered in 5.56x45mm NATO and built around a 16-inch HBAR barrel with a 1:8" twist rate for accurate, consistent performance. The black-finished rifle ships with a 30-round magazine and features a 9-inch M-LOK polymer handguard for accessory mounting and confident handling.

Built by American Tactical Inc (ATI), the Alpha Maxx pairs a steel barrel with a polymer M-LOK handguard to deliver a modern sporting rifle at an accessible price point. The HBAR profile adds barrel rigidity that helps with sustained-fire accuracy, and flip-up polymer sights are included for out-of-the-box aiming without requiring an optic. The semi-automatic action cycles both 5.56 NATO and .223 Remington ammunition.

Set up for sport shooting, range training, and home defense, the Alpha Maxx RIA offers a straightforward AR-15 layout that accepts standard magazines and accessories. The M-LOK handguard allows easy mounting of lights, lasers, grips, and other accessories. Available in new condition, this rifle is ready to shoulder and shoot.

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