Hmmm... I'm 99% positive I did install the spring correctly in my M15 rifle, yet only getting 350 fps out of it, where I should be getting in the 380 range. This could be the problem... I'm about to order a new tappet plate and nozzle for it, so I'll be sure to check that out when I do.
EDIT: Just removed the upper receiver to check out the M15. Seems the spring is installed correctly. Looks like I'll be doing more troubleshooting when I get my new parts.
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Last edited by Crunchmeister; March 22nd, 2008 at 13:30..
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