Century Arms AES 10B
- Category
- Machine Gun
- Barrel
- 590 mm
- Weight, empty
- 5.00 kg
- Introduced
- 2005
About
What it is, and why it matters
The Century Arms AES 10B is a semi-automatic RPK-pattern rifle imported from Romania (Cugir), chambered in 7.62x39mm. Based on the Romanian RPK squad automatic weapon, it features a heavy chrome-lined barrel, integral folding bipod, RPK-style carry handle, club-foot stock, premium RPK wood furniture, bulged trunnion, and the RAK-1 enhanced trigger group. The heavier barrel profile supports sustained fire and improved long-range accuracy compared to a standard AK rifle.
The AES 10B brought the Romanian RPK light machine gun to the US civilian market in semi-automatic form, complete with the distinctive folding bipod and club-foot stock that mark the squad automatic lineage.
MSRP approximately $2,000. SKU RI4988-N / RI3322-N. Semi-automatic only. Classed here as a light machine-gun-pattern rifle (RPK). Ships with a 30-round US Palm magazine; compatible with standard AK magazines and 75-round drums.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Century Arms
- Category
- Machine Gun
- Country
- Romania
- Status
- In production
- Produced
- 2005
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 590 mm
- Overall length
- 1080 mm
- Weight, empty
- 5.00 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Gas operated long stroke
- Firing mechanism
- Hammer fired
- Trigger
- Single stage
- Capacity
- 30
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Stamped steel
- Barrel
- Steel
- Stock
- Wood
- Finish
- Blued
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 745 m/s
- Muzzle energy
- 2100 J
- Effective range
- 600 m
- Maximum range
- 1000 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.
- Rpk pattern
Heavy barrel
Folding bipod
Club foot stock
Rpk style handle
Rak-1 enhanced trigger
Bulged trunnion
Stamped receiver
Long stroke gas piston
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 261 machine guns | 5.00 kg | 10.50 kg | Lighter than about 90% |
| Overall lengthAmong 260 machine guns | 1080 mm | 1156 mm | Shorter than about 70% |
| Barrel lengthAmong 257 machine guns | 590 mm | 605 mm | Shorter than about 60% |
| Magazine capacityAmong 222 machine guns | 30 | 50 | Holds fewer rounds than about 60% |
Answers
Questions about the Century Arms AES 10B
How much does the Century Arms AES 10B weigh?
The Century Arms AES 10B weighs 5.00 kg (11.02 lb) empty.
What caliber is the Century Arms AES 10B?
The Century Arms AES 10B is chambered in 7.62x39mm.
How many rounds does the Century Arms AES 10B hold?
The Century Arms AES 10B holds 30 rounds, fed from a detachable box magazine.
How long is the Century Arms AES 10B?
The Century Arms AES 10B is 1080 mm (42.5 in) long overall, with a 590 mm (23.2 in) barrel.
Who makes the Century Arms AES 10B?
The Century Arms AES 10B is made by Century Arms (United States).
When was the Century Arms AES 10B introduced?
The Century Arms AES 10B was introduced in 2005.
How does the Century Arms AES 10B operate?
The Century Arms AES 10B uses a gas operated long stroke 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.
In service
- US civilian market
- 2005
Provenance
Confidence in this record
68%
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/century-aes-10b' \ --header 'X-API-Key: your_key'{ "id": "century-aes-10b", "name": "Century Arms AES 10B", "manufacturer": { "id": "century-arms", "name": "Century Arms", "countryCode": "US", "foundedYear": 1961, "website": "https://www.centuryarms.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": "d154910cee52996c6c58a3547f2b9ddb0d09a05e3f5558d8d0e9eacd63185679" }, "category": { "id": "machine-gun", "name": "Machine Gun", "description": "Fully automatic firearms for sustained fire" }, "country_of_origin": "RO", "year_introduced": 2005, "barrel_length_mm": 590, "weight_empty_g": 5000, "action_type": "gas_operated_long_stroke"}