SIG Sauer P938 SAS
- Category
- Pistol
- Barrel
- 76 mm
- Weight, empty
- 454 g
- Introduced
- 2020
About
What it is, and why it matters
The SIG Sauer P938 SAS is the SIG Anti-Snag variant of the P938 micro-compact 1911-style pistol, introduced in 2020. Based on the P938 platform - itself a 9mm scaled-up version of the P238 in .380 ACP - the SAS variant undergoes a radical dehorning process that removes all sharp edges and protrusions to create an ultra-smooth, snag-free profile ideal for deep concealment. The single-action-only (SAO) pistol features a 3-inch barrel, aluminum alloy frame, and polished engraved stainless steel slide. Unlike the striker-fired P365 SAS which uses the FT Bullseye sight, the P938 SAS retains full-size SIGLITE night sights that are flush-fitted to minimize snag potential. The ambidextrous thumb safety enables traditional 1911-style cocked-and-locked carry. With a 7+1 capacity and a weight of just 16 ounces unloaded, the P938 SAS was among the lightest all-metal 9mm micro-compacts available. The P938 platform was discontinued around 2022 as the P365 family supplanted it in SIG's lineup.
The P938 was SIG Sauer's answer to the demand for a micro-compact 9mm with 1911-style ergonomics and controls. It found a loyal following among shooters who preferred the crisp single-action trigger and manual safety of a traditional design over the modern striker-fired P365. The SAS variant represented the last major evolution of the platform before it was retired, combining the beloved P938 action with the snag-free treatment that had proven popular on the P365 SAS. Today the P938 SAS is sought after by collectors and 1911-platform enthusiasts as a discontinued piece of SIG's micro-compact lineage.
The P938 is fundamentally different from the P365 family - it uses a traditional 1911-style single-action-only trigger mechanism with an external hammer and manual thumb safety, rather than a striker-fired system. The barrel features left-hand twist rifling (1:10), which is unusual for modern pistols. The aluminum alloy frame keeps weight low but transmits more felt recoil than the polymer P365 despite the heavier slide. The SAS dehorning treatment was applied to the P938 after proving successful on the P365 SAS in 2019. The P938 SAS was relatively short-lived, produced from 2020 until the P938 line was discontinued around 2022, making it one of the rarer P938 variants.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- SIG Sauer
- Category
- Pistol
- Country
- United States
- Status
- Discontinued
- Produced
- 2020 to 2022
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 76 mm
- Overall length
- 150 mm
- Height
- 97 mm
- Width
- 28 mm
- Sight radius
- 107 mm
- Weight, empty
- 454 g
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Short recoil
- Firing mechanism
- Single action
- Trigger
- Single action
- Trigger pull
- 22.0 N
- Capacity
- 7
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum alloy
- Slide
- Stainless steel
- Barrel
- Stainless steel
- Finish
- Nitron
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 340 m/s
- Muzzle energy
- 431 J
- Effective range
- 25 m
- Maximum range
- 1800 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.
- Micro compact 1911 design
Siglite night sights- Anti snag dehorned profile
Flush sights
All metal construction
Ambidextrous thumb safety
Polished engraved stainless slide- Cocked and locked carry
- Deep concealment optimized
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 560 9x19mm Parabellum pistols | 454 g | 765 g | Among the lightest tenth |
| Overall lengthAmong 559 9x19mm Parabellum pistols | 150 mm | 191 mm | Shorter than about 90% |
| Barrel lengthAmong 569 9x19mm Parabellum pistols | 76 mm | 105 mm | Shorter than about 90% |
| Magazine capacityAmong 571 9x19mm Parabellum pistols | 7 | 15 | Holds fewer rounds than about 90% |
Answers
Questions about the SIG Sauer P938 SAS
How much does the SIG Sauer P938 SAS weigh?
The SIG Sauer P938 SAS weighs 454 g (1.00 lb) empty. It is the 5th lightest of 560 9x19mm Parabellum pistols in the catalogue.
What caliber is the SIG Sauer P938 SAS?
The SIG Sauer P938 SAS is chambered in 9x19mm Parabellum.
How many rounds does the SIG Sauer P938 SAS hold?
The SIG Sauer P938 SAS holds 7 rounds, fed from a detachable box magazine.
How long is the SIG Sauer P938 SAS?
The SIG Sauer P938 SAS is 150 mm (5.91 in) long overall, with a 76 mm (2.99 in) barrel.
Who makes the SIG Sauer P938 SAS?
The SIG Sauer P938 SAS is made by SIG Sauer (Germany).
When was the SIG Sauer P938 SAS introduced?
The SIG Sauer P938 SAS was introduced in 2020 and discontinued in 2022.
How does the SIG Sauer P938 SAS operate?
The SIG Sauer P938 SAS uses a short recoil action, and its firing mechanism is 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/sig-sauer-p938-sas' \ --header 'X-API-Key: your_key'{ "id": "sig-sauer-p938-sas", "name": "SIG Sauer P938 SAS", "manufacturer": { "id": "sig-sauer", "name": "SIG Sauer", "countryCode": "DE", "foundedYear": 1985, "website": "https://www.sigsauer.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": "944f4088befdcee3b0aa7caf122998351ef3d78abc525a2bdec9df81e65a6b30" }, "category": { "id": "pistol", "name": "Pistol", "description": "Handguns designed to be fired with one or two hands" }, "country_of_origin": "US", "year_introduced": 2020, "barrel_length_mm": 76, "weight_empty_g": 454, "action_type": "short_recoil"}