The American Tactical Alpha Maxx 410 Upper Shotgun Kit transforms a standard mil-spec AR-15 lower into a smooth-shooting .410 bore shotgun platform. This dedicated upper features an 18.5" smooth bore barrel paired with a 13" polymer M-LOK handguard, keeping familiar AR-15 ergonomics while delivering reliable performance with .410 shotshells. Included flip-up sights and a 5-round magazine make it a ready-to-run package for shooters who want to expand the versatility of their AR.

Designed for range use, training, and recreational shooting, the Alpha Maxx 410 Upper Shotgun Kit offers lighter recoil and a forgiving shot pattern that make it approachable for a wide range of shooters. The adjustable gas system with an easy-to-use knob lets you tune the action for different .410 loads, while the included buffer and magazine simplify installation on compatible lowers. Backed by American Tactical’s commitment to accessible, innovative AR-platform configurations, this upper provides a straightforward way to add a shotgun option to your existing rifle setup.

• Manufacturer: American Tactical
• Model: Alpha Maxx 410 Upper Shotgun Kit Gen3
• Caliber: .410 Bore / .410 GA
• Barrel Length: 18.5" Smooth Bore
• Rail Type: 13" Polymer M-LOK Handguard
• Capacity: 5-Round Magazine
• Gas System: Adjustable With Knob