Trejo Modelo 1 GT
- Category
- Pistol
- Barrel
- Not recorded
- Weight, empty
- Not recorded
- Introduced
- Not recorded
About
What it is, and why it matters
The Trejo Modelo 1 GT is a Mexican select-fire machine pistol chambered in .22 Long Rifle, produced by Armas Trejo of Zacatlan, Puebla. Styled after the Colt 1911 but with a more aggressive grip angle, it fires from a blowback action and offers both semi-automatic and full-automatic fire at a cyclic rate of roughly 1200 rounds per minute from an 8-round detachable box magazine. Mexican law of the era permitted civilian ownership of fully automatic rimfire firearms, making the compact Modelo 1 a legally available machine pistol.
Because Mexican law at the time allowed civilians to own fully automatic rimfire firearms, Armas Trejo could legally sell 1911-styled machine pistols that emptied their magazines in under half a second; a regulatory change in the early 1970s put the family company out of business almost overnight.
The Trejo pistols were made by a small family company in Puebla, Mexico from the late 1940s until the early 1970s. The larger Modelo 2 used an 11-round magazine. Production ended abruptly following changes to Mexican firearms regulations.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Armas Trejo S.A.
- Category
- Pistol
- Country
- Mexico
- Status
- Discontinued
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Blowback
- Firing mechanism
- Hammer fired
- Trigger
- Single action
- Capacity
- 8
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Slide
- Steel
- Barrel
- Steel
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle energy
- 130 J
- Effective range
- 25 m
- Rate of fire
- 1200 rpm
Trajectory
What the round does downrange
Solved from the muzzle figures and the bullet. The dashed rule is the effective range on the record, and the crosses are the steps the solver returned.
No load solved for this record yetThe flight path is computed from a cartridge and a bullet. This record has no ammunition filed against its chambering, so there is nothing to solve.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
Select fire
1911 styled frame
Aggressive grip angle
Standing
How it compares
This record has too few measurements to compare with others yet.
Answers
Questions about the Trejo Modelo 1 GT
What caliber is the Trejo Modelo 1 GT?
The Trejo Modelo 1 GT is chambered in .22 Long Rifle.
How many rounds does the Trejo Modelo 1 GT hold?
The Trejo Modelo 1 GT holds 8 rounds, fed from a detachable box magazine.
Who makes the Trejo Modelo 1 GT?
The Trejo Modelo 1 GT is made by Armas Trejo S.A. (Mexico).
How does the Trejo Modelo 1 GT operate?
The Trejo Modelo 1 GT uses a blowback action, and its firing mechanism is hammer fired.
Compatibility
Which parts fit this firearm
Studio
Every part that mounts on this, resolved
Not a list the maker typed out: the answer comes from the mounts this firearm exposes and the interface each part needs, so it stays right when either one changes.
- Every part that mounts on any firearm in the catalogue
- Interface standards, platforms and fit overrides
- The same answers through the API and the MCP server
Requires a signed-in GunSpec account on the Studio plan. The answer is computed per part, so it is not part of the public record.
Provenance
What the record holds
Every figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.
In service
- Mexican civilian market
- Mexico
Provenance
Confidence in this record
60%
Stockists
Where to buy
Offers link straight to the shop. GunSpec never takes the order.
No shop has listed this firearm yet
Stock and prices come from the shops themselves. If you sell this firearm, you can list it and it appears here.
List a firearmMCP
Ask an assistant about it
The same record, reached the way a person asks for it rather than the way a program does.
Ask GunSpec
Works with
Point an MCP client at GunSpec and it answers from the catalogue rather than from memory. A free key covers the read tools.
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/firearms/trejo-modelo-1-gt' \ --header 'X-API-Key: your_key'{ "id": "trejo-modelo-1-gt", "name": "Trejo Modelo 1 GT", "manufacturer": { "id": "trejo", "name": "Armas Trejo S.A.", "countryCode": "MX", "foundedYear": 1948, "website": null, "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-07-19 22:59:14", "updatedAt": "2026-07-19 22:59:14", "version": "37f3f8582a5601c9c6b07074aeeee57346ea2bb4375db40eeceb856f0bdbbf26" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "MX", "year_introduced": null, "barrel_length_mm": null, "weight_empty_g": null, "action_type": "blowback"}