Next time use goggle for searchs. Yahoo hasn't showen me any thing yet.
http://www.williamsgunsight.com/
I have bought 2 Muzzle loaders from them, several center fires, several shot guns and a rim fire. The guns were in the condition when I inspected them as they told me they were over the phone.
If you buy one from them and it isn't what they say it is PLEASE let me know as I do tell people about them and recommend them so I will personally go in there and take some ones head off.
Al