I have a NAA mini muzzloader for sale. The guy I bought it from said it had never been fired and I havn't fired it either. Comes with all the things that are shipped with it from the factory. $250.00 plus shipping.
I haven't seen one of those around for awhile now. That is a pretty cool little gun, and there should be no need for an FFL dealer to get involved. I was watching a guy on a video loading one with just the cap and a .22 caliber pellet gun pellets. It looked like a good way to do some cheap shooting for some entertainment.