have to rack slide after each shot...

[D.Kovacs]

Originally Posted by martin2112

This is really something to try. It solved two of my problems:
My WE Luger would auto fire until mag was empty.
My KSC USP Tactical would shoot one BB every other shot, and not lock the slide when mag was empty.

Pull the slide back slowly, and look at the nozzle come back. It will tend to stick to the hop-up; it should normally start moving back almost as soon as the slide goes back.
Use some spay silicon and be generous on the nozzle and give a the hop-up rubber a bit of spray too.
Then move the slide a gain and observe the prompter retraction of the nozzle.

don't use a a spray, it'll most likely be petroleum based, and melt either your nozzle or other bits.

[SuperCriollo]

Originally Posted by martin2112

This is really something to try. It solved two of my problems:
My WE Luger would auto fire until mag was empty.
My KSC USP Tactical would shoot one BB every other shot, and not lock the slide when mag was empty.

Pull the slide back slowly, and look at the nozzle come back. It will tend to stick to the hop-up; it should normally start moving back almost as soon as the slide goes back.
Use some spay silicon and be generous on the nozzle and give a the hop-up rubber a bit of spray too.
Then move the slide a gain and observe the prompter retraction of the nozzle.