by league 4 » Tue Sep 14, 2010 6:26 pm
Wow people are really suggesting systema?
RiotSC for gears, MTHaynes gearbox shell, system (NOT systema) piston, Kanzen bearings if you can shim really well, spring guides don't really matter as long as they're metal with bearings, springs vary, nozzles, cylinder heads, cylinders, and piston heads do too among different brands. I can't get good compression in my ICS M4 with a VFC piston head, but I can with a JG, and it's the other way around with my VFC GB shell and cylinder so you'll have to mix and match or stick with one brand. Generally as long as you get good compression with those parts you're fine.