HI all im wondering if anyone can help me iv decided to learn to do my own tech work so I brought myself boneyard jg mp5 ras to work on to see if I could get it working and doing so iv tried shimming the gearbox myself I followed a video by the airsoft tech which iv seen a few people mention however he uses the pistol grip and half she box method which seems really easy. u
Unfortunately the gun i have i cant do that as the pistol grip and lower receiver is all one peice and so iv tried to do it and its not worked as got a awful sound. I wasnt expecting it to be right as its my first time but my question is has anyone els had the same problem with the pistol grip and lower receiver being one peice and how did you get round it when shimming it is there a different way to shim the gears when I cant use this current method?
Thank you in advance