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G.I. Joel · April 9th, 2009, 10:44

I'm looking into buying a spring for my KWA to bring it down from the blistering 400fps to a 340-350 range for use indoors.
I'm terribly confused as to what spring type to purchase. as far as I can tell, Most M100 springs will do that job well and others are too high. Im just worried about going over 350fps with them. Then again, some M/S90s are low like 300-320ish. What should I do?
Im in need of some good advice from a gun doc I guess.
Thanks for all your help.

April 9th, 2009, 10:44	#1
G.I. Joel Trader rating Join Date: Jan 2008 Location: Simcoe County, ON	Bumfuzzled by spring rates! I'm looking into buying a spring for my KWA to bring it down from the blistering 400fps to a 340-350 range for use indoors. I'm terribly confused as to what spring type to purchase. as far as I can tell, Most M100 springs will do that job well and others are too high. Im just worried about going over 350fps with them. Then again, some M/S90s are low like 300-320ish. What should I do? Im in need of some good advice from a gun doc I guess. Thanks for all your help.