I acquired the pistol used and though something was funy as the slide would not return on its own?so here's were i really get into trouble""i borrowed a friends to see what was going on and took the slide off his to see if a spring was in their and would,nt no it ?it rolls out on its side.i have spent 2 hours trying to fugue out how it goes back in? Well the manual says DO NOT take the back of slide off?? du" i guess you can say im in double trouble"