Obregón pistol

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TypeSemi-automatic pistol
Place of originMexico
Production history
DesignerAlejandro Obregón
No. builtless than 1,000
Mass1130 g
Length216 mm
Barrel length127 mm

Cartridge.45 ACP
ActionShort recoil, rotating barrel
Rate of fire2.7
Muzzle velocity253 m/s
Effective firing range~59 m
Feed system7-round detachable box magazine
SightsFront blade and rear notch

The Obregón is a Mexican designed semi-automatic pistol designed in the mid-1930s by a mechanical engineer, Alejandro Obregón. It uses the same .45 caliber ammunition as the 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 Austro-Hungarian Steyr M1912 pistol, not the "swinging link and pin" of the Colt M1911 series.

One of the Obregón's design curiosities is that its safety switch and slide lock are a single unit. Less than 1,000 of these pistols were produced at the national armory in Mexico City between 1934 and 1938[1], but it was neither a sales success nor was it commissioned to be made for the Mexican government.

See also[edit]


  1. ^ Thompson, Leroy (20 May 2011). The Colt 1911 Pistol. Weapon 9. Osprey Publishing. p. 66. ISBN 9781849084338.