How to craft a decent suppressor for a pistol?

[desh]

I want to be able to create a suppressor for this pistol here:
http://www.blank-guns-depot.com/blank-firing-guns-store/files/productpics/d_794.jpg

I want to avoid anything cheap really, I want a decent one that I can make and is fully functional, like being able to twist it on, etc. So how would I go about this boys? What materials would I need? I can post specifics of the measurements of the barrel when I obtain the weapon.

[yawanur]

find Vargus in Greasemonkeys and PM him.

[LavaRed]

You need to have a barrel threaded for a suppressor.
Also look up my suppressor threads

[blue_monday]

well, first you're going to have to go through the paperwork of course.

[Random_Looney]

Check the suppressor threads, Uncle Bob's, etc. Anything of questionable legality goes there.