Sorry JJ, the wife came home from work. If it didn't come with a swivel stud its easy to install. Just be sur not to put too much prseeure on one in a polymer stock. They can pull out under too much pressure in a softer polymer/composite stock.
I found one with a nut. i think if I don't actually screw it into the polymer (where it bites into the plastic), instead just make a hole the screw fits through and then fix it on with the nut ...
