Crosman Gameface BB Tracer - Light 'em up with the all-new Game Face BB Tracer! The BB Tracer flashes your glow-in-the-dark BBs with intense light as they pass through the chamber. With a simple push-button activation and 4 AAA batteries, you will activate your BBs instantly. Simple Push Button Activation Activate Glow-In-The-Dark Airsoft BBs Only Works On 14MM CCW (Counter Clockwise) Threaded Barrels Requires 4 AAA Batteries