Tracer Unit XT501 Mk2 CCW Xcortech, works with tracer bbs.

Works with batteries: 4 x AAA (not included) <<<--------PFFFF Anyone From Maimers Gets Batteries!!!!!
Dimensions: 156 x 37 mm
Weight: 140 g
Thread: 14 mm CCW
- The battery lasts up to 120,000 rounds
- Sustain tracer function over 35 rps (2100 rpm)
- Provided with battery indicator
- LED Brightness adjusting option.