That's weird, I don't think that there should be any difference in any 94 modern action, as far as I know the trapper model only differs in barrel length. Just recently I was messing with a couple of 94's, one in the 5 mill ser range and the other in the 24xx ser range and the stocks fit the tangs on both guns perfectly except at the hammer boss area. The much newer model was "full width" steel at the boss area while the old girl is a bit narrower but at the spring area they are built a bit different (one has the old flat spring and the new model the coil spring mechanism) but the stock cut-out accommodated both easily.