Quote:
Originally Posted by LuckySeven
I chronied my ICS M4 stock it's only at average of 320FPS
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Blueprint the upper gearbox and install a prometheus 6.03 363mm barrel. ((since they don't have the ICS groove in the barrel stabillize the up hop with a couple turns of 2-3mm wide electric tape))
That will take you to about 350-355 fps without any Modification related reliability issues and you get to keep that 1 bb per Ma average
Cheers