TM only make a full size Uzi so do you have a Springer or AEG? Unless you mean the toy scale ones which are electric anyway. cheapest quickest option is just to buy a Well full size AEP Uzi, next cheapest option will be to fit a kwc gbb mini Uzi into the body you have, it wouldn't require that much modification. Other option is HPA (expensive and will require lots of fabrication work) or get an AEP Mac 11 and fit the internals ( a lot cheaper than HPA but still lots of fabrication).