CRAZY ULT problem..

[DeuceSV]

So, I have a ULT... zero shims, all the O-rings are replaced... still get the automatic fire when I hold down the trigger...

I have no early idea why its doing that. I'm supposed to take this mag out tomorrow morning... PLEASE HELP MEEEE

thanks,
Jason

[maniacmechanic]

could be a bent ULT pin , they are very thin & bend easy , this could cause the on /off to stick open

[Coralis]

check your sear, also check the oring that goes inside the ult (the little black one)