LayLax go over the KSC PMX DX set, a gas blowback airsoft gun modeled after the Beretta PMX. They emphasize that the model is produced under an official license and precisely matches the 2.4kg weight of the actual firearm. This specific deluxe set includes additional accessories such as a dedicated silencer and a picatinny-rail-compatible finger stop. They also highlight the polymer construction, noting that despite the material, the build quality remains rigid with a folding stock that shows no wobbling during use.

The demonstration covers the mechanical operation and ergonomics of the submachine gun, focusing on the ambidextrous magazine catch and safety selectors. The crew observe the cycling action of the bolt, which features a short-stroke design intended for rapid fire. They also point out practical features for field use, such as the ability to use the iron sights and operate the charging handle even when the stock is folded. The video showcases the gas-filling process and the responsive feedback of the trigger, characterized by a sharp mechanical sound and movement.

During the live-fire testing phase, the gun is evaluated for its performance in both semi-automatic and full-automatic modes. They report that the semi-automatic trigger response is consistent and allows for quick follow-up shots, while the full-automatic mode maintains a steady rate of fire with manageable recoil. Accuracy tests at a target range indicate tight groupings, confirming the unit's effectiveness for tactical play. In the end, they recommend it for both airsoft players and collectors, providing details on how to acquire the set through official online stores.