hi, i was just looking for a guide to change a full stock to a crane stock on an m4, (its wired to the back)i dont actually have the gun yet im buying it from a freind, so i havnt had a chance to look at it but the the gg gr16-r4i was wondering if its just a m4 with a stock that is wired to the back, how there is the two long screws that run from the back of the buffer tube to the body, then you just switch it out for a crane stock...anyway anything would be great, thanks
you need a crane stock and a buffer tube for it. the full stock does not use a buffer tube. you simply guide the wires through the buffer tube (once you attach it to the back) and into the stock. then just pu the stock on and put the batteries in and viola! crane stock!
