The NUPROL Red Laser Pistol Mount - Black is a tactical airsoft accessory designed to provide a precise aiming point, primarily for specific pistol models like the Beretta M92/M9, or models with a 22mm RIS/Weaver rail. It is valued for improving aim, especially in low-light conditions. 
 
Key Features and Specifications
The specific features depend on whether it is the universal rail-mounted version (NAC-18-02) or the M92/M9 specific trigger guard mount (NAC-18-01).
Laser Color: Projects a red laser.
Activation: Features convenient in-switches or a pressure pad control for effortless activation.
Adjustability: The laser can be adjusted for both windage and elevation to ensure aiming accuracy.
Material: The pressure pad version (NAC-18-02) is primarily made of high-density polymer, ensuring durability without adding excessive bulk.
Power Source: Typically powered by CR123A batteries.