Eject the magazine and rack the slide action back to clear the firing chamber of any live rounds. Clearing your weapon of ammunition should always be your first step whenever you are working on a firearm.
Use your screwdriver to push in the take-down screw on the right side of the weapon---located just above and in front of the trigger guard---then give the screw a quarter-turn clockwise.
Pull the slide back and lift up the back end until it comes off of the pistol frame.
Push the slide forward and off the pistol. This is as far as you can break down the pistol, as the barrel is permanently affixed to the frame.
Also, check your spelling of Sterling.
You need a gunsmith.
Take it to a gunsmith and ask for help
Take it to a gunsmith and ask for help
Best to have a gunsmith teach you how.
You need a gunsmith
If you don't have a manual, find a gunsmith and ask for help
Ask a gunsmith for help
Best left to a gunsmith
You need a gunsmith.
Go to:http://stevespages.com/page7b.htm click on: Colt MKIV Series 80 380 Hope that helps.
Take it to a gunsmith and ask for help
Ask a gunsmith for help