Gun shop, gun show
triplek.com
The Kimel firearms company is out of business, so your best bet is online. Either gunbroker.com or try Numrich Arms.
Where can I purchase a magazine for a American arms P-98 . .22 cal. I think they are 8 rounds. Clone of a P-38.
Try e-gunparts.com
Contact the maker, want ads, gun shows, gun shops, internet auctions.
Which model? If it is the t9 or t8 pistol then you have to buy an adapter for a 20 oz tank.
The best you can afford from any reputable maker.
In the US, you need to locate a dealer in your home state that has a special license ( commonly called a Class III) to sell suppressors. You will need to apply to the BATFE for transfer of the suppressor to you, and pay a $200 tax on the transfer.
You might try a search on Commemorative Arms Co. Supposedly they purchased a supply of repair parts for the Nomad, Challenger, and Medalist
Yes.
Sig
I do not think you can. Please rearch the Indian Arms Rules of 1962. While India DOES have a licensing process for some firearms, the IMPORTATION of most firearms is sharply curtailed- and THAT pistol is not made in India. Sorry.