ABOUT TEN YEARS AGO AT A GUN SHOW IN PORELAND OR.Not looking for anything special,i spoted a RSBH i thought,i got closer but it didn't have any screws or pins ITwas a Ggizzly 44mag w/4 5/8" brl.IT was made in dallas TX. bu MIKKENGER ARMS.It has a one piece frame and grip all in one. It has a side plate like a smith.To axcess ,thare is a screw under left grip pannel.The onley external screw is the ejector houseing screw. Billy latta -ALASKA.DOSE ANYONE OUT TRERE HAVE ONE OR KNOW WHO DOSE