It's not like a Cyma/WELL AEG comes with a high price tag (relatively speaking, of course)! I can't think of a better platform to try your first gearbox swap.
What gear box is it a clone of .. so your're going to need a version II?
Get a better inner-barrel while you're at it. The WELL R6 has a brass one that is also painfully too short. You should be able to get that from the same place as your replacement gear box. The hop-up unit looks poor, too, but a whole new set can be hard to find some times.
If you want a real treat (or maybe if buying an entire v2 gearbox becomes a giant pain in the butt), you could get away with changing less about this gun ... but at the price of doing a lot more work.
Internally, the only parts this gun really needs replaced are:
- the brass inner barrel (even just a stock TM M4 barrel)
- the main spring (even just an M100)
- the o-ring (is actually decomposing, with little pieces coming off)
- the shims (they are cheap plastic, and they are melting when you shoot)
These are not expensive parts at all, and I can speak from personal experience that it will actually be a fairly decent-performing gun at that point. The only question is - exactly how brave do you feel about taking your gun apart?
Either way, you can do great things with this project. It's an excellent investment to learn from.
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