Hey guys...I was having some problems with my spyderMag going full auto at will.I thought it was my modified sear sticking somewhere on the frame or body.It turned out to be the pancake noid plunger sticking.Then I thought the plunger might be sticking on the frame but it was still sticking out of the frame.I ended up using an old blue bolt bumper on the plunger, it fits perfect...did not dampen the magnetic pull much...and no more stick.

There is usually a paper thin flat washer between the plunger and the noid body. Did you loose that?

Dont remember it having one but I could be wrong.