Colt M1900
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The Colt Model 1900 is a short-recoil operated "self-loading", or semi-automatic .38 caliber handgun introduced by Colt's Manufacturing Company at the turn of the 20th century. The M1900 was the first firearm to be chambered in .38 ACP and was the... Wikipedia
Action: Short recoil operated; Single-action trigger mechanism
Cartridge: .38 ACP
Designed: 1897
Effective firing range: 25 yards (23 m)
Feed system: 7 round box magazine
Length: 8.9 in (230 mm)
Muzzle velocity: 1,259 ft/s (384 m/s)