KWA G19 Upgrades?
 

Except the metal slide upgrade for my KWA Glock 19, what other upgrades can i buy for my Glock? I was planning on buying a new recoil spring and guide for it, do any of you reccomend it? I think it would be cool with even more recoil, even if it does lose some accuracy in rapid fire. Any suggestions?

thanks,

Jason K