You can use a lot of the aftermarket parts from TOW or others, you may just have to spend some quality time with files to get the parts to fit the CVA. As far as safety using a smaller pin goes. I'm no authority, but the only thing those pins do is hold your stock to the barrel. Not sure there is a safety issue associated with that. But again I'm no authority on these matters. Just an old Muzzleloader who happened to have a more artistic vision of where to go with the CVA.