50 dollars or so
Let a gunsmith do it.
$14.50 http://www.calguns.net/calgunforum/showthread.php?t=254632
Cobra Enterprises acquired the rights to the P-380 pistol from Davis Industries in 1996. The P-380 is a compact .380 ACP semi-automatic pistol, and Cobra began producing it shortly after obtaining the rights. This acquisition allowed Cobra to expand its offerings in the budget firearm market.
$70-$95
Can't be answered without knowing who made it.
gun shows, e-gunparts.com
gun shows, e-gunparts.com
You will need to ask a gunsmith for help
50-100 USD
Find a gunsmith and ask for help if you don't have a manual
Find a gunsmith and ask for help if you don't have a manual
To clean a Davis P-380 auto pistol, first ensure the firearm is unloaded by checking the chamber and magazine. Disassemble the pistol according to the manufacturer's instructions, typically including removing the slide and barrel. Clean the barrel using a bore brush and solvent, then wipe down the slide and frame with a soft cloth to remove dirt and debris. Finally, lubricate the moving parts lightly with gun oil before reassembling the pistol.