I could give all this background information about the gun and why I'm doing it but it's simple. Cyma m14 Upgrading to metal bushings if they are plastic, if someone could tell me what size they are and of they are plastic that would be great. Keeping shimming stock as I don't trust my shimming For now keeping aoe stock Popping in an m120 spring Getting an upgraded motor either lonex or Shs. Is the version 7 gearbox short type motor? That's it... For now. As I upgrade the gun further I will keep posting on here. Buying the parts tomorrow once I know what kinds I should buy.