look at the grip frame ,with the grips OFF and see if there is a raised edge (ramp)?? at the top ,front edge of the frame this was a 'support' in their early castings, and the reason MOST Ruger grips are "notched" at the top ,front, on the NEWER ,anniversary type guns, this "raised" portion is NOT there, so NO "notch" in the grips panel, also, the locating pin was moved ,ever so slightly, so the early ,OLD model XR-3 grips are "close" but do NOT fit, without altering them, same goes for the "newer" anniversary (2005) grips style, you can modify them , (cut a notch and elongate the locating pin hole and they will work,,,yes, gets very confusing and as many folks are constantly "swapping" grips frames makes the matter even more confusing, as to just what is on the gun,,,,,I have to LOOK/SEE if the notch is there or not, the pin hole is in the right spot and the back of the grip is either 'flat' ( straight) or flaired out at the bottom..............then I can make an "educated" guess and try out whatever is handy.....we end up doing this almost every weekend at any given gun show for folks looking to 'find' the right grips to change on their guns...... :roll:
wish it was so simple as to say they are all the same????? OR, ONLY a couple of versions..... 8)
now go back and figure out the ones with and with out LOCKS :shock:
:wink: