The Palmetto State Armory (PSA) PA-15 chambered in .450 Bushmaster is a modern adaptation of the AR-15 platform designed for big-bore, straight-walled cartridge performance, primarily targeting hunters. It utilizes the .450 Bushmaster cartridge, developed by Tim LeGendre in 2007 and popularized by Bushmaster Firearms, to offer single-shot, large-game stopping power at 250+ yards in a semi-automatic rifle. Sniper scope included