Hi all. I'm pretty new to airsofting so here goes. I bought a cheapish mp5 for a skirmish recently. I have to be honest I was quite happy with how it performed but thought I would do a few mods to get a some more fps. Upgraded spring, piston, etc, etc. I had a quick look in the gear box and thought yeah I can do that, do you think I can put it back together, can I f***. So if any body knows some one who does rebuilds/ repairs can they let me know. I'm in south Wales but obviously I'd be willing to post and pay via PayPal or transfer.Thanks.