Colt Trooper Mk V
- Category
- Pistol
- Barrel
- 102 mm
- Weight, empty
- 1.08 kg
- Introduced
- 1982
About
What it is, and why it matters
The Colt Trooper Mk V is the final evolution of Colt's medium-frame Trooper double-action revolver, produced from 1982 to 1985. It introduced a new, slightly smaller 'V' frame with a fully redesigned action, a shorter hammer fall for faster lock time, and a lighter, smoother double-action pull. Chambered in .357 Magnum with a six-shot swing-out cylinder, it carried a full ventilated rib over the barrel with a half underlug and adjustable sights, visually echoing the Colt Python. It was the last of the Trooper line before Colt wound down its double-action service-revolver production.
The Mk V's reworked action gave it the fastest lock time of any Colt double-action revolver to that point, but it arrived just as Colt was retreating from the police-revolver market, making it the swan song of the Trooper name.
Built on the new 'V' frame; the Whitetailer variant offered an 8-inch barrel. This is a distinct variant of the earlier Colt Trooper Mk III (variant_of: colt-trooper).
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Colt's Manufacturing Company LLC
- Category
- Pistol
- Country
- United States
- Status
- Discontinued
- Produced
- 1982 to 1985
- Variant of
- V frame
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 102 mm
- Overall length
- 235 mm
- Weight, empty
- 1.08 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Double action
- Firing mechanism
- Double action single action
- Trigger
- Double action
- Capacity
- 6
- Magazine
- Internal
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Steel
- Stock
- Rubber
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 440 m/s
- Muzzle energy
- 784 J
- Effective range
- 50 m
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.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
Swing out cylinder
V frame
Redesigned action
Ventilated barrel rib- Half underlug
Adjustable rear sight
Standing
How it compares
Each figure against the firearms of the same type and cartridge that record it, or of the same type where that cartridge has too few. Positions are read to the nearest tenth.
| Measurement | This firearm | Median | Position |
|---|---|---|---|
| Empty weightAmong 79 .357 Magnum pistols | 1.08 kg | 965 g | Heavier than about 80% |
| Overall lengthAmong 78 .357 Magnum pistols | 235 mm | 236 mm | Near the median |
| Barrel lengthAmong 79 .357 Magnum pistols | 102 mm | 102 mm | Longer than about 60% |
| Magazine capacityAmong 79 .357 Magnum pistols | 6 | 6 | Near the median |
Answers
Questions about the Colt Trooper Mk V
How much does the Colt Trooper Mk V weigh?
The Colt Trooper Mk V weighs 1.08 kg (2.37 lb) empty.
What caliber is the Colt Trooper Mk V?
The Colt Trooper Mk V is chambered in .357 Magnum.
How many rounds does the Colt Trooper Mk V hold?
The Colt Trooper Mk V holds 6 rounds, fed from an internal magazine.
How long is the Colt Trooper Mk V?
The Colt Trooper Mk V is 235 mm (9.25 in) long overall, with a 102 mm (4.02 in) barrel.
Who makes the Colt Trooper Mk V?
The Colt Trooper Mk V is made by Colt's Manufacturing Company LLC (United States).
When was the Colt Trooper Mk V introduced?
The Colt Trooper Mk V was introduced in 1982 and discontinued in 1985.
How does the Colt Trooper Mk V operate?
The Colt Trooper Mk V uses a double action, and its firing mechanism is double action single action.
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.
Provenance
Confidence in this record
70%
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/colt-trooper-mk-v' \ --header 'X-API-Key: your_key'{ "id": "colt-trooper-mk-v", "name": "Colt Trooper Mk V", "manufacturer": { "id": "colt", "name": "Colt's Manufacturing Company LLC", "countryCode": "US", "foundedYear": 1855, "website": "https://www.colt.com", "logoUrl": null, "description": "American firearms manufacturer headquartered in Hartford, Connecticut. Founded in 1855 and now a subsidiary of Colt CZ Group, continuing production of iconic firearms including the 1911 pistol.", "status": "active", "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:38", "updatedAt": "2026-02-18 03:43:38", "version": "7143c7ff3f7e156063a240f2df7b4746ee1c0394d7cd5f592d05bac43233d637" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "US", "year_introduced": 1982, "barrel_length_mm": 102, "weight_empty_g": 1077, "action_type": "double_action"}