The Beretta PMX gas-powered airsoft submachine gun is designed for close-quarters scenarios, offering compact dimensions, responsive handling, and a realistic shooting feel. With an energy level of below 1.0 joule, it fits well within standard airsoft field limits while delivering consistent performance with 6 mm BBs. The lightweight frame is built from fiberglass-reinforced polymer, allowing the PMX to remain durable without adding unnecessary weight. At only 2400 g and a length of 637 mm, it is easy to maneuver in tight spaces and is especially suited for fast-paced gameplay.

This model features a 48-round magazine, providing significantly extended shooting capability compared to many other gas-powered platforms. The blowback system is clearly noticeable, contributing to the realistic handling and improving overall immersion during use. The PMX includes multiple ambidextrous controls, such as the fire selector and magazine release, ensuring that both right- and left-handed players can operate the gun comfortably. The bolt lever can also be switched to either side for complete user customization.

An adjustable shoot-up system allows players to fine-tune accuracy depending on BB weight and distance. The recommended BB weights are 0.20 g and 0.25 g, making it adaptable for different playing conditions. A threaded barrel (M12×1) supports tracer units and silencers, while the integrated Picatinny quadrail provides attachment points for grips, optics, lights, or other accessories. A vertical foregrip is already mounted to enhance control and stability.

Overall, the Beretta PMX stands out as a versatile, realistic, and well-equipped airsoft SMG, offering strong performance and professional-level ergonomics for players who seek compact power and advanced handling.