As I've said, I bought a nice used stainless Single Six and I want to try a few things with it. I know B-square and Weigland both make no-machining scope bases for this 6.5 inch gun, but I don't find clear pictures of both to examine. I'd like a base full length of the barrel that uses the factory tapped rear and front sight holes to secure the base. Either one of these attach that way? Thanks.