Constructed from durable anodised aluminum using CNC machining, the lower motor cover for Specna Arms Dark Matter is equipped with a ball bearing for optimum performance. Its precise design and premium materials allow for enhanced cooling and improved motor placement in the grip. Specifically designed for use with brush motors, the Dark Matter series offers exceptional quality at a budget-friendly price, making it the perfect choice for advanced players and replica techs seeking top-notch power, rapid-fire capability, and reliability.