IDOGEAR Airsoft Lighter S Tracer Glow In Dark Airsoft Tracer Unit BB Supressor Shaped 

Materials:Aluminum
Color option : Black，Dark Earth
Length option：8.8cm/3.46", 13.2cm/5.2", 15.8cm/6.22"
Outer Diameters:3.7cm
Fit 14mm CCW
Weight:180~220g
Package:Protective shell*1，circuit protection shell*1，core opetator*1，usb line*1
 
Feature:
Two color,three length version for options
USB charging
Built-in lithium battery,a full battery lasts four hours
Low battery alert function
High power UV LED technology
Integrated motion sensor inside
Battery last up to 20000 rounds.
Can be adpated to 14mm CCW
Automatics on/off control by motion sensor
It can be upgraded your own silencer tracer.
Built in silencing cotton to reduce noise interference and protect ears