San Tan Tactical Patrol Series SBR
- Category
- Carbine
- Barrel
- 267 mm
- Weight, empty
- 2.95 kg
- Introduced
- 2024
About
What it is, and why it matters
The San Tan Tactical Patrol Series SBR is a short-barreled rifle chambered in 5.56 NATO, offering the duty-grade Patrol Series build with a buttstock under NFA registration. It is available with 10.5-inch, 11.5-inch, or 12.5-inch 4150 chrome-moly-vanadium barrels on a carbine-length gas system tuned for suppressed and unsuppressed fire. Built on San Tan Tactical's fully ambidextrous billet receiver set with the in-house STT Wedge Lock M-LOK handguard, it combines a CMC Triggers Combat Curved 3.5-pound trigger, an STT Duty bolt carrier group with ArmorLube DLC coating and dual ejectors, a BCM MK2 receiver extension, a B5 SOPMOD Bravo stock, and a B5 P23 grip, shipping with a Magpul PMAG and an A2 birdcage muzzle device. As a registered SBR it provides a true buttstock for improved control over the equivalent braced pistol, in a compact, fully ambidextrous duty package.
The Patrol Series SBR is the NFA-stamped sibling of San Tan Tactical's Patrol Pistol, delivering the same compact, ambidextrous duty configuration with a proper shoulder stock for shooters who complete the short-barreled rifle registration.
Patrol Series SBR (NFA short-barreled rifle), ~$1,851-$1,912. Barrel options 10.5"/11.5"/12.5". 4150 CMV barrel, carbine gas, A2 birdcage. STT Wedge Lock rail, CMC Combat Curved 3.5lb trigger, STT Duty BCG (ArmorLube DLC), BCM MK2 buffer tube, B5 SOPMOD Bravo stock, B5 P23 grip, Magpul PMAG included. Lifetime warranty.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- San Tan Tactical
- Category
- Carbine
- Country
- United States
- Status
- In production
- Produced
- 2024
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 267 mm
- Overall length
- 711 mm
- Weight, empty
- 2.95 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Gas operated direct impingement
- Firing mechanism
- Hammer fired
- Trigger
- Single stage
- Trigger pull
- 16.0 N
- Capacity
- 30
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum alloy
- Barrel
- Steel
- Stock
- Polymer
- Finish
- Nitride
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 850 m/s
- Muzzle energy
- 1450 J
- Effective range
- 300 m
- Maximum range
- 2500 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.
Free floating handguard
M lok attachment
Rotating bolt
Flat top receiver
Picatinny rail
Ambidextrous controls
Billet receiver
Threaded barrel
Adjustable stock
Carbine length gas system
A2 flash hider
Qd sling mount
Short barreled rifle
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 141 5.56x45mm NATO carbines | 2.95 kg | 2.95 kg | Near the median |
| Overall lengthAmong 144 5.56x45mm NATO carbines | 711 mm | 838 mm | Shorter than about 90% |
| Barrel lengthAmong 150 5.56x45mm NATO carbines | 267 mm | 406 mm | Shorter than about 90% |
| Magazine capacityAmong 150 5.56x45mm NATO carbines | 30 | 30 | Near the median |
Answers
Questions about the San Tan Tactical Patrol Series SBR
How much does the San Tan Tactical Patrol Series SBR weigh?
The San Tan Tactical Patrol Series SBR weighs 2.95 kg (6.50 lb) empty.
What caliber is the San Tan Tactical Patrol Series SBR?
The San Tan Tactical Patrol Series SBR is chambered in 5.56x45mm NATO.
How many rounds does the San Tan Tactical Patrol Series SBR hold?
The San Tan Tactical Patrol Series SBR holds 30 rounds, fed from a detachable box magazine.
How long is the San Tan Tactical Patrol Series SBR?
The San Tan Tactical Patrol Series SBR is 711 mm (28.0 in) long overall, with a 267 mm (10.51 in) barrel.
Who makes the San Tan Tactical Patrol Series SBR?
The San Tan Tactical Patrol Series SBR is made by San Tan Tactical (United States).
When was the San Tan Tactical Patrol Series SBR introduced?
The San Tan Tactical Patrol Series SBR was introduced in 2024.
How does the San Tan Tactical Patrol Series SBR operate?
The San Tan Tactical Patrol Series SBR uses a gas operated direct impingement action, and its firing mechanism is hammer 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.
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/san-tan-patrol-series-sbr' \ --header 'X-API-Key: your_key'{ "id": "san-tan-patrol-series-sbr", "name": "San Tan Tactical Patrol Series SBR", "manufacturer": { "id": "san-tan-tactical", "name": "San Tan Tactical", "countryCode": "US", "foundedYear": 2014, "website": "https://santantactical.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-05-26 23:17:02", "updatedAt": "2026-05-26 23:17:02", "version": "c1139a677fa7af41dd6438dbf52cba065b12bc498325f190b463c511f41a7e64" }, "category": { "id": "carbine", "name": "Carbine", "description": "Shortened rifles for close-quarters use" }, "country_of_origin": "US", "year_introduced": 2024, "barrel_length_mm": 267, "weight_empty_g": 2950, "action_type": "gas_operated_direct_impingement"}