Discover top-tier semi-auto rifles and AR-15 pistols at Guns And Ammo, your premier destination for 5.56 NATO firearms like the ATI Alpha Maxx series with threaded barrels, Black M-LOK handguards, and optic-ready designs perfect for home defense, target shooting, and close-quarters action. Explore semi-automatic handguns, 1911 pistols, and bolt-act