Bunny Workshop have in stock both the CO2 and Gas Blowback Versions of the KJ Works CZ-75 SP-01 Shadow... "The ČZ 75 is a pistol made by Česká zbrojovka Uherský Brod (CZUB) in the Czech Republic that has both semi-automatic and selective fire variants. First introduced in 1975, it is one of the original "wonder nines" featuring a staggered-column magazine, all-steel construction, and a hammer forged barrel.