The Bushmaster M4A3 Type Carbine is a reproduction of the Colt M4 Carbine, but is usually only semi-automatic for legality within the U.S. Email:[email protected] https://outdoorarmorshop.com/2022/06/28/bushmaster-m4a3/ https://outdoorarmorshop.com/2022/06/28/bushmaster-m4a3/