I use these type of paper clips
You can get two take down pin's form one paper clip
Stick empty mag in the gun , pull back slide,
Then eject mag
Take paper clip, put in hole of guide rod
Push slide release
Line up slide and push slide release out, slide off slide
Push guide rod back leaving paper clip in place, guide rod ,spring & reverse bushing should come out all in one piece
Barrel should come out normally
Put back together in reverse order
NORM