As new, tested in the garden and works flawlessly, light up the tracers very well.  Unwanted gift, 50 posted. 

Specna Arms ATU ™ Silencer - Advanced Tracer Unit III

The ATU ™, or Advanced Tracer Unit, is yet another variation of the Specna Arms silencer equipped with a tracer ball illumination system. The housing is entirely made of lightweight aluminum, and the integrated thread with a standard 14mm CCW type allows mounting on most of the most popular airsoft carabiners and pistols. In addition to the tracer module, there are additional damping sponges in the middle of the housing.

Thanks to high-power LEDs located on both sides of the ball inlet, the silencer very effectively illuminates tracer ammunition imitating the effect of a tracer bullet, which will allow you to diversify airsoft games taking place at night, indoors or in CQB / speedsoft arenas.

Features of the damper:

- housing made of 100% aluminum

- has damping sponges inside

- USB charging

- operating time up to 4 hours

- built-in lithium battery

- battery status indicator

- effective high power LEDs

- two-sided light source

- motion sensor that automatically turns on / off the device

- a silencer designed to illuminate green balls

- irradiation of BBs with a rate of fire of up to 35 BBs / s