I'm gonna sugest that having both a bearing piston head and a bearing spring guide may be the problem. I had a similar problem years ago with an MC51 - the mechbox would lock up full to the rear for no apparent reason.
As I figured it out, the spring (Angel) was too long when used in combination with bearings at both ends (piston head + spring guide) and would be fully compressed before the piston was all the way back, locking the piston/gears.
Here's a quick-and-dirty suggestion: remove the piston head bearing and replace with a washer and shorter screw. See if the gun will cycle that way. Alternately, replace the piston head with one that doesn't have a bearing.
As an aside, removing the extra weight of the bearings will also lighten the piston assembly. The reduction in reciprocal mass should give you higher rate of fire.
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Originally Posted by TokyoSeven
That was a very bad move on your behalf. Sort of like cutting off your foot for money, but not getting the money first and then letting the person with the money run away.
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Originally Posted by MadMorbius
Liberals rely on emotion. Conservatives rely on evidence, and the Socialists rely on everyone else.
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