
Browning’s earliest 1895 pistol prototype
John Browning started his work on semi-automatic pistols in 1894, when he mostly finalized the M1895 Colt–Browning machine gun.[2] He initially tried to use the same gas action with a swinging piston, with a prototype ready to be shown to Colt in July 1895,[3] and applied for a patent[4] in September 1895.[5]

Browning’s .38 blowback pistol prototype, which was scaled down to create the FN M1899
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