
- description
What separates this from most gas SMGs is the engine. Tokyo Marui built it around a piston of roughly 16mm diameter, and paired it with a short-stroke gas piston action that moves visibly as the bolt travels. The recoil impulse is unusually hard for the gas it burns — consumption sits closer to a pistol than to a full-size gas rifle, which is what makes a 40-round magazine last a sensible length of time on a skirmish day. Run the charging handle to chamber the first round, and the bolt stop holds the action open the moment the magazine empties.
The hop adjustment is the detail owners tend to talk about. Rather than hanging a dial off the outside of the receiver, Tokyo Marui tucked it inside the ejection port: lift the trigger and the dial presents itself, so nothing interrupts the lines of the gun and nothing snags. Tokyo Marui hold a patent application on the mechanism. The KSK sights detach entirely, the front adjusts for elevation and the rear for windage, and both fold flat the moment you put an optic on the top rail. Field-stripping follows the real sequence closely enough to be worth doing slowly the first time.
Ambidextrous handling is genuine rather than nominal: the selector and the magazine catch are both reachable from either side, which matters more on a compact PDW than it does on a rifle, because the gun spends its life close to the body and gets passed between hands in confined space. The A1-type stock pulls out to four positions, the foregrip folds away when you want the smallest possible package, and there are 20mm metal rails on the top face and both flanks for lights, optics and anything else the loadout calls for.
Specifications
| Specification | Detail |
|---|---|
| Colour | Black |
| Length | 381mm stock collapsed / 586mm fully extended |
| Barrel length | 146mm |
| Weight | 2,200g with an empty magazine fitted |
| Magazine | 40 + 1 rounds, die-cast, long-type for gas capacity |
| Fire modes | Safe / semi / full-auto, selector on the body side |
| Power source | Tokyo Marui HFC134a or their non-fluorocarbon gas |
| Blowback engine | Approximately 16mm piston, bolt cycles with each shot |
| Hop-up | Adjustable; dial appears inside the ejection port when the trigger is lifted |
| Stock | A1-type, four length positions |
| Bolt stop | Engages when the magazine runs empty |
| Ambidextrous | Selector and magazine catch work from either side |
| Sights | Detachable KSK type, front adjusts elevation, rear adjusts windage |
| Rails | Picatinny 20mm metal rails on the top and both sides |
| Forward grip | Folding |
In the box
Gun, 40-round magazine, protective cap, full-auto tracer and silencer adapter, cleaning rod, 100 rounds of 0.20g BBs, and the manual and handling notes.