The ATI Alpha Maxx Rifle chambered in 5.56x45mm NATO is a reliable and adaptable AR-15 Rifle built for high performance in tactical, recreational, and training environments. With its 16-inch heavy barrel (HBAR), 1:8 twist, and a modular 13-inch M-LOK-style rail, this AR 15 offers accuracy, versatility, and customization options to meet modern shooting demands. Outfitted with a 6-position adjustable rear stock and a high-capacity S60 60-round magazine, this rifle delivers extended firepower and ergonomic flexibility. 16-inch heavy barrel and 1:8 twist rate deliver excellent performance with various bullet weights, making it ideal for both short- and mid-range engagements. The 13-inch M-LOK-style rail-crafted from polymer and steel-offers exceptional durability and space for mounting AR-15 accessories such as optics, lights, vertical grips, and lasers. A built-in QD (Quick Detach) sling mount further enhances usability for AR-15 Tactical applications. Paired with a 6-position adjustable stock, this AR-15 Adjustable platform ensures comfort and fit for any shooter. The inclusion of a 60-round S60 magazine makes this rifle stand out in high-volume shooting scenarios, appealing to those seeking AR-15 Extended Magazines.