AR57: Fun Times with a Tiny Carbine (aka FSS Hurricane)
This video showcases the AR-57, a unique AR-15 upper receiver system designed to accept FN P90 magazines and fire the 5.7x28mm cartridge. The AR-57 allows for top-mounted magazine feeding and downward ejection through the AR-15's traditional magazine well. The reviewer demonstrates both a first-generation full-length rifle and a second-generation short-barreled rifle (SBR) equipped with a suppressor. The video also thanks MagPul for sponsoring, highlighting their Daka Grid rifle case.














