Mk 4 revolver, 38/200 caliber, United Kingdom, 1923
Characteristics:Caliber: 6 MM Muzzle Velocity: 280 FPS with 0.20 gr Double action: Semiautomatic Capacity: 6 BBs, 1 ball per cartridge 6 Removable and reusable metal cartridges included Construction: ABS and Metal parts Power Source: Gas