Trejo Modelo 1-A
Armas Trejo S.A. · Pistol · Discontinued · 1952
Also known as: Trejo Model 1-A, Pistola Trejo Modelo 1-A
Overview
The Trejo Modelo 1-A is a compact .22 Long Rifle blowback-operated semi-automatic pocket pistol produced in Mexico by Armas Trejo of Zacatlan, Puebla. It is the semi-automatic-only version of the select-fire Trejo Modelo 1 machine pistol, retaining the same small steel frame, 75 mm barrel and eight-round detachable box magazine but omitting the full-automatic capability. Loosely derived from the Colt Model 1908 vest-pocket design, it was a widely sold civilian handgun in Mexico from the 1950s through 1970.
Specifications
| Weight (empty) | 620 g (21.9 oz) |
| Overall Length | 160 mm (6.30") |
| Barrel Length | 75 mm (2.95") |
| Action Type | Blowback |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Action |
| Magazine Capacity | 8 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 320 m/s (1050 fps) |
| Muzzle Energy | 130 J (96 ft·lbf) |
| Effective Range | 25 m (27 yd) |
| Barrel Rifling | Right Hand |
| Frame Material | Steel |
| Slide Material | Steel |
| Barrel Material | Steel |
| Stock Material | Wood |
| Finish | Blued |
Calibers
- .22 Long Rifle · primary — also known as .22 LR, 5.6x15mmR
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety
- Features: Compact Frame, Fixed Sights
Variants
- Trejo Modelo 1 - Select Fire
- Trejo Modelo 2 - Long Barrel
- Trejo Modelo 3 - Centerfire
Base model
Trejo-Modelo-1
Service history
Operators
- Mexican civilian market
Production
Production years: 1952-1970
Estimated 80,000-100,000 pistols produced across all Trejo models during the original 1948-1970 production run
Origin
Country of origin: Mexico
Designer: Gabriel Trejo
Discontinued: 1970
Notes
The Modelo 1-A was offered as a semi-auto-only alternative after the select-fire Modelo 1 drew scrutiny for being a readily concealable machine pistol. Trejo produced an estimated 80,000-100,000 pistols across all models before the original run ended around 1970; production later resumed under Industrias Trejo de Zacatlan.
Background
The parent Trejo Modelo 1 is often cited as one of the smallest machine pistols ever made; the Modelo 1-A was the tamer, semi-automatic-only sibling created so the design could still be sold freely on the Mexican civilian market.