Which gas-operated (short-stroke gas piston) self-loading rifle with a rotating bolt is developed by the Tangodown company?
TangoDown TangoDown is an American manufacturer and marketer of firearms accessories. It developed the ARC magazine for the SCAR program with assistance from United States Navy SEALs. It also produces the "BattleGrip" foregrip and other accessories.
Ferret 50 The Ferret 50 is a high-caliber bolt-action rifle developed by Spider Firearms for competition shooting and long-range hunting. It is chambered for .50BMG, .408 CheyTac, and .338 Lapua.