27.75mm outer diameter (for tracer fitment) 61.5mm total length

The Xcortech XT301 MK2 tracer unit is an ultra compact unit that works great with both pistols, rifles and SMGs. 
Included with the unit is a 14mm CCW thread adapter that converts its existing 11mm CCW to the standard 14mm. 
What potentially could be the coolest feature of this tracer is with its compact form factor,
you can use it to upgrade other existing "dummy" suppressors. 

Features: 

High Power UV LED Technology 

Battery Lasts Up To 20,000rds 

Can Sustain Tracer Function Up To 35RPS (2,100 RPM)

2 Side Light Sources For Optimum Illumination

Integrated Motion Sensor Inside

Built-in Lithium Battery

Battery Level Indicator 

Automatic Power On / Off Control By Motion Sensor 

USB Charging Ready 

Includes: 

x1 Xcortech XT301 MK2 Compact Airsoft Tracer Unit - Black

x1 USB Charging Cable 

Note: It is recommended to charge the unit every 2 months when in storage / not in use

Color: Black