These are original grips. There is a small slot in bottom of grip so that ser# is visible. Pachmayr still makes this grip though the rubber composition seems different and fit is sometimes iffy. Some of the overrun revolvers shipped with wood RB magna's

Another quick tell is that only other No-dash 686's with round butt are the 2.5" Lew Hortons. Both the 3" & 4" CS1's had the round butt frame and pinned black sight.