I have a few CO2 powered BB and pellet guns in my collection. The most accurate and expensive is the Umarex made S&W 586 pellet revolver and the least expensive, but most fun to shoot is the Tanfoglio Witness 1911A1 .45 auto with blowback action. The Umarex Colt SAA is a very nice replica, though it should say .32-20 0r .38-40 on the barrel instead of 45 Colt as the cartridges and cylinder are way small for 45 Colt. Very accurate for a BB gun.
I may have buy a Scovile and a Luger one of these days.

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