Obregón pistol
| Obregón | |
|---|---|
| Type | Semi-automatic pistol |
| Place of origin | Mexico |
| Production history | |
| Designer | Alejandro Obregón |
| Specifications | |
| Mass | 1130 g |
| Length | 216 mm |
| Barrel length | 127 mm |
| Cartridge | .45 ACP |
| Action | Short recoil, rotating barrel |
| Rate of fire | 2.7 |
| Muzzle velocity | 253 m/s |
| Effective firing range | ~59 m |
| Feed system | 7-round detachable box magazine |
| Sights | Front 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. 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 the Mexican government.