Description G&G Ver2 8mm Gearbox Shell (Standard Version) Replacement gearbox shell for any G&G version 2 gearbox gun. Suitable for any V2 gun, though optimised for G&G Raider, Top Tech 418, GR4 CQBS Mini, MP5 etc. Installation of a new gearbox shell is a complicated job, and requires good knowledge of the internals of an airsoft gun. Even factory replacement shells may require a new shim job, as there could be subtle differences that could cause the gears to bind. Installation requires complete disassembly of your gun.
