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-m110
-airseal nozzle
-polycarb ball bearing piston head
the spring itself should do u good for that fps...those things i listed are a benefit. But, as I write to every other person who asks about internal upgrades, then u should.
get:
polycarb piston
polycarb bb piston head
bb spring guide
bushings
double o-ring cylinder head
airseal nozzle
possible reinforced gearset, for setups 385-390+fps
modifyed tappet plate
so basically...change the internals...
airsoftparts.ca is ur answer
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