TM Hi Capa Slide Issue
 

Have a TM Hi Capa and it has been trouble free for the last few years. When I used it last time, the slide will not return completely after firing. I tried to grease it, but it still not returning properly.

Will replacing the recoil spring helps?

try loosening the the hex screw a little for the nozzle housing at the back of the slide

does the slide return better, sometimes if you over tighten this housing to the slide it can cause some issue

does it work without a mag inserted
is it all stock?