You don't you throw it away, I once owned this gun as a youngster, I was shoot at by gang bangers when I reached for this POS it jammed, I sold it and went with a 44mag bulldog
25
First, it's not 25 mm, it's 25 ACP. Second, not very much. According to the Blue Book of Gun Values, the most it can be worth is about $50.00
25-50 USD
25-50 USD
Follow instructions in owner's manual
25-65 USD
If you don't have an owner's manual, find a gunsmith.
gun shops, gun shows, want ads, e-gunparts.com
$25-$50. Sorry- very low quality firearms.
Several companies have manufactured .25 ACP handguns throughout the years. Walther, Jennings, Bryco, Lorcin, Raven, Jiminez, Browning, Beretta... just a handful of manufacturers who have made or who do make handguns in that caliber.
Best thing to do is find a gunsmith