Obregon (pistol)

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Obregon
Type	Semi-automatic pistol
Service history
In service	?
Production history
Designer	Alejandro Obregon
Designed	?
Number built	?
Variants	?
Specifications
Weight	1130 g
Length	216 mm
Barrel length	127 mm
Cartridge	.45 ACP
Action	Single action
Rate of fire	Semiautomatic
Muzzle velocity	253 m/s
Effective range	~ 50 m
Feed system	7 rounds
Sights	Blade (front) U-notch (back)

The Obregon is a Mexican designed semi-automatic pistol designed in the mid-1930s by a mechanical engineer, Alejandro Obregon. It uses the same ammunition as the 0.45-inch caliber Colt 1911 and resembles it in overall appearance, frame size and weight. However, its short-recoil operating and barrel locking system employs a diagonal cam on the rear of the barrel sliding against a diagonal receiver-mounted groove to rotate the barrel, much like that of the Austrian Steyr M1912 pistol, not the "swinging link and pin" of the Colt 1911 series.

One of the Obregon's design curiosities is that its safety switch and slide lock are a single unit. A few hundred of these pistols were produced at the national armory in Mexico City during the 1930s, but it was neither a sales success nor was it commissioned to be made for Mexican government.