Acetech i-Tracer Advanced BB Control System Computer Chronograph / Tracer / Burst Control Unit - Black Airsoft Guns Another featore of the SMG-68

Another featore of the SMG-68 is the removable barrel

1900 Cubic Inches of Storage

custom look right out of the box

x5 Reg Relief Spring

Heavy Duty Ballistic Glass Filled Nylon

Acetech i-Tracer Advanced BB Control System Computer Chronograph / Tracer / Burst Control Unit - Black Airsoft Guns Another featore of the SMG-68Features Standard Airsoft 14mm( ) negative threaded tracer made from high quality aluminum. High efficiency circuit with digital display with brightness controls. Devices communicate via wireless signal. Power saving standby and auto power off modes available Measure muzzle velocity (FPS MPS), energy (Joule) and ROF (RPS RPM) via iTracer Unit (14mm( ) negative thread) Programmable BB counter to count down or count up Low ammo warning + low battery