i lost the screw and thumb latch for the rear cylinder lock in my rb .480.i don't have a number to call to get any parts.the screw used to loosen up periodically,i didn't want to use any lock tight,just kept track of it,well it fell out somewhere,first problem i have had with any of my taurus revolvers,i own 5 from .480 down to .17. no complaints,i feel it was as much my fault as theirs.any help would be appreciated.
