Another release from G&G Armament that comes with the ETU already installed... "Ready for any type of environment, the GC16 Warthog Series is offered in 3 different lengths for your gameplay needs. Its equipped with a full metal upper and lower receiver and a CNC machined rail. Internally, a programmable E.T.U.(Electronic Trigger Unit) and a pre-installed MOSFET provides a crisp and snappy trigger pulls.

Now Available. Contact your G&G authorized dealer."