Hammerli 152 Free Pistol
- Category
- Pistol
- Barrel
- 286 mm
- Weight, empty
- 1.34 kg
- Introduced
- 1990
About
What it is, and why it matters
The Hammerli 152 is a Swiss single-shot free pistol built for ISSF 50 metre precision target shooting. It uses an improved Martini-style rear-hinged falling-block action and, unlike its mechanically triggered sibling the Model 150, fires via an electronic ignition system that dramatically shortens lock time and delivers an extremely consistent release adjustable down to just a few grams. Chambered in .22 Long Rifle, it features a free-floated barrel, adjustable weights, an orthopedic adjustable grip, and match-grade adjustable sights.
Hammerli free pistols dominated Olympic and ISSF 50 metre pistol competition for decades, and the electronically fired Model 152 represented the pinnacle of that lineage, with a trigger so light and a lock time so short that many shooters considered it the most refined free pistol trigger ever built.
The electronic system allowed trigger pull adjustment from roughly 2 to 100 grams with a lock time on the order of 0.0016 seconds. It was the electronically fired evolution of the mechanically triggered Model 150.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Hämmerli
- Category
- Pistol
- Country
- Switzerland
- Status
- Discontinued
- Produced
- 1990 to 1992
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 286 mm
- Weight, empty
- 1.34 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Falling block
- Firing mechanism
- Solenoid fired
- Trigger
- Electronic
- Trigger pull
- 0.5 N
- Capacity
- 1
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Steel
- Barrel
- Steel
- Stock
- Walnut
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 330 m/s
- Muzzle energy
- 141 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.
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.
Electronic trigger
Single shot martini action
Adjustable orthopedic grip- Interchangeable rear sight blade
Patridge front sight- Adjustable barrel weights
Free floated barrel
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 151 .22 Long Rifle pistols | 1.34 kg | 900 g | Heavier than about 90% |
| Barrel lengthAmong 155 .22 Long Rifle pistols | 286 mm | 140 mm | Longer than about 90% |
| Magazine capacityAmong 156 .22 Long Rifle pistols | 1 | 9 | Holds fewer rounds than about 90% |
Answers
Questions about the Hammerli 152 Free Pistol
How much does the Hammerli 152 Free Pistol weigh?
The Hammerli 152 Free Pistol weighs 1.34 kg (2.95 lb) empty.
What caliber is the Hammerli 152 Free Pistol?
The Hammerli 152 Free Pistol is chambered in .22 Long Rifle.
How many rounds does the Hammerli 152 Free Pistol hold?
The Hammerli 152 Free Pistol holds 1 rounds.
How long is the Hammerli 152 Free Pistol?
The Hammerli 152 Free Pistol has a 286 mm (11.26 in) barrel.
Who makes the Hammerli 152 Free Pistol?
The Hammerli 152 Free Pistol is made by Hämmerli (Switzerland). It was designed by Hämmerli.
When was the Hammerli 152 Free Pistol introduced?
The Hammerli 152 Free Pistol was introduced in 1990 and discontinued in 1992.
How does the Hammerli 152 Free Pistol operate?
The Hammerli 152 Free Pistol uses a falling block action, and its firing mechanism is solenoid 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
Provenance
Confidence in this record
78%
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/hammerli-152-free-pistol' \ --header 'X-API-Key: your_key'{ "id": "hammerli-152-free-pistol", "name": "Hammerli 152 Free Pistol", "manufacturer": { "id": "hammerli", "name": "Hämmerli", "countryCode": "CH", "foundedYear": 1863, "website": "https://waltherarms.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-18 03:40:45", "updatedAt": "2026-02-18 03:40:45", "version": "e1209cd056d8e246d5f5bd05c752faecd47fbc79eba9c411b20e724db5ca3e62" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "CH", "year_introduced": 1990, "barrel_length_mm": 286, "weight_empty_g": 1340, "action_type": "falling_block"}