The Acetech tracer units are one of the best on the market and at a reasonable price. They act as a mock suppressor for your airsoft guns and use an UV light on a glow-in-the-dark tracer BBs to provide accuracy and... they just look cool as heck.

The Specs:

• Can handle up to 30 RPS
• Stand-by mode
• Automatic power off
• Low battery indicator
• Uses 4x AAA batteries (not included)

Need Tracer BBs? Check them out here.