M12S Submachine Gun Replica [S&T]

The M12S S&T is an AEG submachine gun replica inspired by the Italian PM12S design, designed for users looking for a compact platform, simple operation, and an alternative to common AR or AK-style replicas. Its compact profile, folding stock, and classic layout make it well suited for dynamic, close-range gameplay.

Construction and build

The replica is constructed from a combination of steel, aluminum, and durable polymer, providing solid durability while maintaining a compact form. The cylindrical receiver, short front end, and wire folding stock create a compact and easy-to-handle design.

The 110-round mid-cap magazine is positioned at the front of the receiver, supporting intuitive handling and quick reloads.

Ergonomics and handling

The compact design makes maneuvering in confined spaces, narrow corridors, and around obstacles easier. The model performs well in CQB scenarios where mobility and fast response are key.

The folding stock reduces the overall length for transport and tight environments. When extended, it provides an additional point of contact for better control.

The overall balance and layout support smooth handling during dynamic movement and position changes.

Internal design and mechanics

The replica operates on an AEG system, offering consistent performance and straightforward operation. It uses a dedicated gearbox with 8 mm ball bearings in the motor section and 6 mm bushings in other areas.

The system includes a piston with a full metal rack and a standard pneumatic setup based on a type 2 cylinder and a 20.15 mm nozzle.

A short-type motor provides stable cycling.

Performance and accuracy

The replica is equipped with a 220 mm inner barrel with a 6.05 mm diameter. Muzzle velocity in factory configuration is approximately 380 FPS (0.20 g).

A dedicated hop-up unit allows adjustment of the BB trajectory.

For the user, this results in effective performance at short range and good control in dynamic scenarios.

Power supply

The replica uses a mini Tamiya connector and is designed for 7.4V LiPo batteries. The battery is housed in the front section (handguard area).

Included

• M12S replica
• 110-round mid-cap magazine
• basic battery charger

Recommended accessories

• Magazines: Mid-cap Magazine 120 BB - MP40/Sten/M12S [AGM]
• Batteries: Batería AEP Li-Po 600mAh 7.4V 20C - Tamiya [VB]
• Charger: Compact LIPO charger B3Pro