Split Gearbox Set - FAQ

Why doesn’t my 2nd receiver pin fit?

The spacing differs between different receiver sets, but it has been tested to work with  

G&G receivers. Instead of using the 2nd pin, there’s an M4 setscrew at the front of the gearbox that you’ll adjust until the magazine release loop on the gearbox lines up with the mag release hole in the receiver. 

Instructional video in progress