Try gun shows, gun shops, Brownell's, e-gunparts.com
We can't really guess- your pistol was made by Fabrique National in Herstal Belgium- but you did not tell us the model or caliber.
None
You can purchase a replacement 7 round magazine from Numrich Arms at www.e-gunparts.com. The Part Number is 403080B Cost is $19.95. It is the same magazine used in the Marlin 80 Bolt Action rifle. Happy shooting!
Try the link below.
Try e-gunparts.com
Gun shows, gun shops, e-gunparts, or you might just type a query in a search engine for it. Just put the make and model of your pistol and "magazine", and see what turns up.
Try e-gunparts.com. Also, do a google search.
I have new replacement magazines for the Winchester Model 57. sales@countrygunsmith.net
Same as a Model 92 or if you have an extended magazine up to 20
where can I purchase an owners manual for a Milbro G10 Air Pistol
A Titan .25 caliber pistol typically has a magazine capacity of 7 to 9 rounds, depending on the specific model.
Try gun shops, gun shows, internet, want ads.