Boito BSA 5T 84
- Category
- Shotgun
- Barrel
- 510 mm
- Weight, empty
- 2.95 kg
- Introduced
- Not recorded
About
What it is, and why it matters
The Boito BSA 5T is a pump-action shotgun chambered in 12 gauge, manufactured in Rio Grande do Sul, Brazil. It is a licensed-production shotgun built on the proven Mossberg 500 pattern, featuring a lightweight aluminum-alloy receiver, dual action bars, a tubular magazine holding five 2.75-inch shells, exchangeable choke tubes, and three-dot fiber-optic sights. Offered in a range of barrel lengths for hunting, sport, and home-defense use, it is valued in South American and export markets as an affordable, durable repeating shotgun with broad Mossberg 500 parts compatibility.
Boito is one of Brazil's best-known shotgun makers, long associated with affordable break-action and pump-action smoothbores widely used by rural hunters and farmers across South America.
Newer production models feature a 3-inch chamber; earlier examples were chambered for 2.75-inch shells only. The pump action and many internal parts are interchangeable with the Mossberg 500 family.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- E.R. Amantino & Cia Ltda (Boito)
- Category
- Shotgun
- Country
- Brazil
- Status
- In production
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 510 mm
- Overall length
- 1010 mm
- Weight, empty
- 2.95 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Pump action
- Firing mechanism
- Hammer fired
- Trigger
- Single action
- Capacity
- 5
- Magazine
- Tubular
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum alloy
- Barrel
- Steel
- Stock
- Polymer
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 400 m/s
- Muzzle energy
- 2560 J
- Effective range
- 40 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.
Exchangeable chokes
Fiber optic sights
Dual action bars- Mossberg 500 pattern
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 622 12 Gauge shotguns | 2.95 kg | 3.29 kg | Lighter than about 90% |
| Overall lengthAmong 570 12 Gauge shotguns | 1010 mm | 1150 mm | Shorter than about 80% |
| Barrel lengthAmong 650 12 Gauge shotguns | 510 mm | 711 mm | Shorter than about 80% |
| Magazine capacityAmong 647 12 Gauge shotguns | 5 | 3 | Holds more rounds than about 80% |
Answers
Questions about the Boito BSA 5T 84
How much does the Boito BSA 5T 84 weigh?
The Boito BSA 5T 84 weighs 2.95 kg (6.50 lb) empty.
What caliber is the Boito BSA 5T 84?
The Boito BSA 5T 84 is chambered in 12 Gauge.
How many rounds does the Boito BSA 5T 84 hold?
The Boito BSA 5T 84 holds 5 rounds, fed from a tubular magazine.
How long is the Boito BSA 5T 84?
The Boito BSA 5T 84 is 1010 mm (39.8 in) long overall, with a 510 mm (20.1 in) barrel.
Who makes the Boito BSA 5T 84?
The Boito BSA 5T 84 is made by E.R. Amantino & Cia Ltda (Boito) (Brazil).
How does the Boito BSA 5T 84 operate?
The Boito BSA 5T 84 uses a pump 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
70%
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/boito-bsa-5t' \ --header 'X-API-Key: your_key'{ "id": "boito-bsa-5t", "name": "Boito BSA 5T 84", "manufacturer": { "id": "boito", "name": "E.R. Amantino & Cia Ltda (Boito)", "countryCode": "BR", "foundedYear": 1955, "website": "https://www.boito.com.br", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-07-06 11:00:16", "updatedAt": "2026-07-06 11:00:16", "version": "fbb9f03d225297c630fcf70abc90b135ca12894e984b7a7f6ab0a507ae0453d8" }, "category": { "id": "shotgun", "name": "Shotgun", "description": "Smoothbore firearms designed to fire shot or slugs" }, "country_of_origin": "BR", "year_introduced": null, "barrel_length_mm": 510, "weight_empty_g": 2950, "action_type": "pump_action"}