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Old 11-29-2012, 12:56 PM   #1 (permalink)
Six Point Five
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Join Date: Sep 2011
Location: joliet illinois

springing a pmi trracer

Hey guys.. ive done springs for cockers but never a nelson style or a pmi. Im wondering what springs to change. Ive tryed to search and haven't found much.
play pump.......
Fox Paintball. Millington, Il.
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Old 11-29-2012, 01:12 PM   #2 (permalink)
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Join Date: Oct 2012

I just put a 1/4" spacer behind the hammer spring and that got my velocity up to 290.
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Old 11-29-2012, 08:01 PM   #3 (permalink)
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Join Date: Dec 2010
Location: Fascist Valley

Nelson Hammer/Mainspring = Cocker Hammer/Mainspring
Nelson Valve Spring* = Cocker Valve Spring (with a couple coils cut off to fit a nelson's valve body)

You can also buy a set of three different strength nelson mainsprings from CCI. IMO the best thing you can do in this situation is use it as an opertunity to get yourself Maddman (New LP) Cocker Spring Kit (it's at the bottom of the page)

*You can use stock cocker valve springs, without any modification whatsoever, if you have a RTR valve body and the appropriate valve guide.
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