Choke tubes in Colt/Sauer

[Pawildman]

I've been thinking of buying a Colt/Sauer 12 ga. SxS with a .243 underneath for a new turkey gun. My question is: does this gun come with choke tubes already installed, and if not, can they be installed?
I'm concerned about muzzle end wall thickness being adequate, and the fact that it is a side-by-side, although o/u's can be tubed.
Any thoughts on this from you guys out there?

[handloader1]

I found this number in "Gun List" 920-733-7630 maybe it will help. Good luck.

[Pawildman]

handloader1..........Thanks for the info.........will check it out.