If you don't have a manual, get help from a gunsmith
Best left to a gunsmith
You need a gunsmith
Best to let a gunsmith show you how.
on the right side of a crvena zastava-cal 7.65mm mod70 pistol you will see a round pin above the trigger push that pin out and the pistol will disassemble by pulling the slide forward. johnny
Auction Arms has one on its site.
If you don't have an owner's manual, find a gunsmith and ask for help
Your best bet is to go to a gunsmith.
Assuming you mean a Sterling mdl 287 PPL in cal. .380, these retailed new for about $90.
Depending on condition and EXACT model, 50-200 USD
Depend on the model. Army, navy, police, is it reproduction? Give a general desription, and I can tell you how to pull it down.
You can download or request a manual via mail from the S&W web site or you can ask a gunsmith for help
Depending on condition and EXACT model, 50-200 USD