T238 tracer unit is designed for BB/NERF dart/Gel ball blasters, it attachments to your blaster which allow your BB/NERF dart/Gel ball to glow in the dark. To see the flight path of your shot, special tracer BBs/NERF darts/Gel balls are needed.
T238 tracer adapter
T238 Spitfire Tactical Tracer unit has14CCW and 19mm to 16mm adapter
14CCW suitable for airsoft /gel blaster
19mm to 16mm adapter suitable for NERF
