Madbull Airsoft Gemtech Blackside TRACER Unit
The Madbull Gemtech "Blackside" Tracer Unit is the most advanced BB tracing device in industry. This tracer unit can keep up with a gun firing up to 35 BBs per second. As a BB passes through this tracer it emits a flash of light. This flash will illuminate any glow in the dark BBs in your magazine, which looks really cool while they are flying. This new Madbull Airsoft Gemtech Blackside Tracer Unit is a must have for night games.