Ruger GP100 .22 LR
- Category
- Revolver
- Barrel
- 140 mm
- Weight, empty
- 1.19 kg
- Introduced
- 2016
About
What it is, and why it matters
The Ruger GP100 .22 LR is a ten-shot rimfire double-action revolver built on Ruger's medium-large GP100 frame and chambered for the .22 Long Rifle cartridge. Introduced in 2016, it pairs a heavy 5.5-inch full-lug stainless steel barrel with a ten-round cylinder, adjustable rear sight, and a fiber-optic front sight, making it well suited to target shooting, plinking, small-game hunting, and double-action practice. Its full-size frame and substantial 42-ounce weight give the light-recoiling .22 LR round a steady, muzzle-heavy balance, while the cushioned rubber grip with hardwood inserts and the traditional Ruger transfer-bar safety round out a durable, easy-shooting range revolver.
Ruger answered long-standing demand for a full-size rimfire trainer and small-game revolver by adapting its rugged GP100 platform to hold ten rounds of .22 Long Rifle, letting shooters practice double-action technique on a familiar centerfire-sized frame at a fraction of the ammunition cost.
Ruger catalog designation KGP-22-55, model number 1757. The full-lug barrel and 42 oz weight tame the already mild .22 LR recoil, and the ten-round cylinder gives twice the capacity of Ruger's centerfire GP100 chamberings.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Sturm, Ruger & Co.
- Category
- Revolver
- Country
- United States
- Status
- In production
- Produced
- 2016
- Variant of
- Rimfire
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 140 mm
- Overall length
- 279 mm
- Weight, empty
- 1.19 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Revolving
- Firing mechanism
- Double action single action
- Trigger
- Double action single action
- Capacity
- 10
- Magazine
- Rotary
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Stainless steel
- Barrel
- Stainless steel
- Stock
- Hardwood
- Finish
- Satin stainless
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 330 m/s
- Muzzle energy
- 141 J
- Effective range
- 45 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.
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.
Swing out cylinder
Full lug barrel
Fiber optic front sight
Adjustable rear sight
Cushioned rubber grip
Hardwood grip inserts
Stainless steel construction
Exposed hammer
Ten shot cylinder
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 404 revolvers | 1.19 kg | 1.05 kg | Heavier than about 80% |
| Overall lengthAmong 415 revolvers | 279 mm | 260 mm | Longer than about 60% |
| Barrel lengthAmong 431 revolvers | 140 mm | 127 mm | Longer than about 60% |
| Magazine capacityAmong 434 revolvers | 10 | 6 | Holds more rounds than about 90% |
Its place in the rankings
Answers
Questions about the Ruger GP100 .22 LR
How much does the Ruger GP100 .22 LR weigh?
The Ruger GP100 .22 LR weighs 1.19 kg (2.63 lb) empty.
What caliber is the Ruger GP100 .22 LR?
The Ruger GP100 .22 LR is chambered in .22 Long Rifle.
How many rounds does the Ruger GP100 .22 LR hold?
The Ruger GP100 .22 LR holds 10 rounds, fed from a rotary magazine.
How long is the Ruger GP100 .22 LR?
The Ruger GP100 .22 LR is 279 mm (10.98 in) long overall, with a 140 mm (5.51 in) barrel.
Who makes the Ruger GP100 .22 LR?
The Ruger GP100 .22 LR is made by Sturm, Ruger & Co. (United States).
When was the Ruger GP100 .22 LR introduced?
The Ruger GP100 .22 LR was introduced in 2016.
How does the Ruger GP100 .22 LR operate?
The Ruger GP100 .22 LR uses a revolving 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
85%
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/ruger-gp100-22-lr' \ --header 'X-API-Key: your_key'{ "id": "ruger-gp100-22-lr", "name": "Ruger GP100 .22 LR", "manufacturer": { "id": "ruger", "name": "Sturm, Ruger & Co.", "countryCode": "US", "foundedYear": 1949, "website": "https://www.ruger.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:40", "updatedAt": "2026-02-18 03:40:48", "version": "99f742e0e01d24b135a262603a4191a9c848e3f1d9fbb1e0caaccabcfacb5e23" }, "category": { "id": "revolver", "name": "Revolver", "description": "Handguns with a revolving cylinder containing multiple chambers" }, "country_of_origin": "US", "year_introduced": 2016, "barrel_length_mm": 140, "weight_empty_g": 1191, "action_type": "revolving"}