2 OTHER POSSIBLE ISSUES WITH THE BFR LPA REAR SIGHTS: 1) THEY MAY BE TOO HIGH EVEN WHEN SCREWED ALL THE WAY DOWN (I HAD TO FILE THE RS BLADE DOWN TO GET IT TO WORK ON 1 REVOLVER), AND 2) THE ELEVATION SCREW MAY PORTRUDE ENUFF THRU THE FRAME TO TIE UP THE CYLINDER, NECESSITATING FILING DOWN THE SCREW.
THE BOWEN REAR SIGHTS, WHEN AVAILABLE, ARE EXCELENT.