RE: Thompson Contender!!!
If you are buying I would reccomend the Encore as it has way more possibilities to make itinto you what you want. It has a unlimited supply of factory barrels that fit it and you can have them custom made for just about any caliber you want.
I have 2 Encore Frames and 4 barrells and 2 Contender frames and 4 barrels for that also. And I like them both, but the Encore is way better.
Just my 2 cents.