ATI Alpha Maxx .300 Blackout 16" 31-Round Threaded Barrel Rifle

The ATI Alpha Maxx .300 Blackout 16" 31-Round Threaded Barrel Rifle is purpose-built for operators and tactical shooters who demand a compact, subsonic-ready platform without compromise. Chambered in .300 Blackout—the intermediate cartridge that revolutionized suppressed shooting—this rifle delivers rifle-caliber ballistics in a footprint smaller than most 5.56 systems. Designed for close-quarters engagement, precision suppressed fire, and specialized law enforcement or defensive roles, the Alpha Maxx bridges the gap between an AR pistol and a full rifle while maintaining serious terminal performance.

At 8.3 pounds and 39 inches overall, this rifle strikes an optimal balance between control and maneuverability in confined spaces. The 16-inch threaded barrel (1/2x28 thread pitch) accepts industry-standard suppressors, allowing subsonic loads to reach their full potential—critical for audible signature reduction in tactical operations. The 31-round capacity magazine provides substantial firepower reserves while the threaded barrel design enables rapid suppressor mounting and removal without tools. American Tactical's Alpha Maxx platform features a modern ergonomic layout that operators expect, delivering reliable semi-automatic fire suitable for duty, training, and defensive applications.

This rifle is ideal for law enforcement tactical units, military personnel familiar with AR platforms, and serious civilian shooters prioritizing suppressed capability and compact handling. Agencies running specialized entry teams or precision support missions benefit from the .300 Blackout's subsonic performance—especially when paired with a quality suppressor and appropriate ammunition. The threaded barrel and compact profile make it equally suitable for home defense scenarios where overpenetration is a concern and noise mitigation enhances situational awareness. Standard AR-15 maintenance applies, ensuring familiarity across teams.