American Tactical is proud to bring the Alpha Maxx to the table as their next firearm in their vast inventory. Chambered in .223 Remington/556NATO, the ATI Alpha Maxx comes standard with many of the reliable components that are offered in their other lines. Featured in the Alpha Maxx is a 9" polymer M-LOK rail, 16" Hanson profile barrel with 1:8 twist and their Nano composite lower parts kit.