This is one of the nicer after market brass SBH grip frames out there. I believe the manufacturer was a company called Caravelle and their frames are much nicer casting than the Ruger MR3-BD units were. It is for a new model gun unless you want to build an adaptor or buy one of Clements adaptor triggers. It has a brushed finish on it now. I did not polish it out since some guys want the softer subtle look rather than shiney. They price is $275 shipped and it can be broken up into two payments if need be. I will leave it here for a day or so then post it on the Ruger Forum. the first "I'll Take It" posted followed by a PM gets it earmarked for themselves.