Ruger SP101 .22 LR
- Category
- Revolver
- Barrel
- 107 mm
- Weight, empty
- 850 g
- Introduced
- 2011
About
What it is, and why it matters
The Ruger SP101 .22 LR is a compact, double-action/single-action rimfire revolver built on Ruger's small-frame SP101 platform. Reintroduced in 2011 with an eight-round cylinder, it is machined entirely from stainless steel and pairs a 4.2-inch barrel with an adjustable rear sight and a fiber-optic front sight, making it a popular trainer, plinker, and small-game revolver.
Ruger first introduced the SP101 as a small-frame centerfire defensive revolver in 1989. The eight-shot .22 LR version, added in 2011, gave the rugged platform a low-cost, low-recoil trainer that mirrors the handling of its .38 Special and .357 Magnum siblings.
The .22 LR SP101 (model 5765, catalog KSP-242-8) holds eight rounds versus the five-round capacity of the centerfire SP101 models. It shares the SP101's transfer-bar safety and triple-locking cylinder.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Sturm, Ruger & Co.
- Category
- Revolver
- Country
- United States
- Status
- In production
- Produced
- 2011
- Variant of
- Caliber variant
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 107 mm
- Overall length
- 231 mm
- Weight, empty
- 850 g
- Weight, loaded
- 871 g
ActionHow it cycles, what trips it, and what feeds it.
- Firing mechanism
- Double action single action
- Trigger
- Double action single action
- Capacity
- 8
- Magazine
- Rotary
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Stainless steel
- Barrel
- Stainless steel
- Stock
- Rubber
- Finish
- Satin stainless
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 320 m/s
- Muzzle energy
- 130 J
- Effective range
- 25 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.
Fiber optic front sight
Adjustable rear sight
Cushioned grip
Wood grip insert
Eight 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 | 850 g | 1.05 kg | Lighter than about 70% |
| Overall lengthAmong 415 revolvers | 231 mm | 260 mm | Shorter than about 70% |
| Barrel lengthAmong 431 revolvers | 107 mm | 127 mm | Shorter than about 70% |
| Magazine capacityAmong 434 revolvers | 8 | 6 | Holds more rounds than about 90% |
Answers
Questions about the Ruger SP101 .22 LR
How much does the Ruger SP101 .22 LR weigh?
The Ruger SP101 .22 LR weighs 850 g (1.87 lb) empty and 871 g (1.92 lb) loaded.
What caliber is the Ruger SP101 .22 LR?
The Ruger SP101 .22 LR is chambered in .22 Long Rifle.
How many rounds does the Ruger SP101 .22 LR hold?
The Ruger SP101 .22 LR holds 8 rounds, fed from a rotary magazine.
How long is the Ruger SP101 .22 LR?
The Ruger SP101 .22 LR is 231 mm (9.09 in) long overall, with a 107 mm (4.21 in) barrel.
Who makes the Ruger SP101 .22 LR?
The Ruger SP101 .22 LR is made by Sturm, Ruger & Co. (United States). It was designed by Sturm, Ruger & Co..
When was the Ruger SP101 .22 LR introduced?
The Ruger SP101 .22 LR was introduced in 2011.
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
- Civilian sport and target shooters
- United States
Provenance
Confidence in this record
88%
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-sp101-22-lr' \ --header 'X-API-Key: your_key'{ "id": "ruger-sp101-22-lr", "name": "Ruger SP101 .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": 2011, "barrel_length_mm": 107, "weight_empty_g": 850, "action_type": null}