The official end of the M17 may have been in '33, but Remington kept assembling them after that. My 2 M17s were both date coded from 1939. One major difference between the 17 and 37 is that the 37 incorporates an extractor on the top of the bolt. The M17 didn't. A few earlier 12 gauge M37's only had the bottom extractor/ejector, but Ithaca felt the need to add one to the top as well. The only 37's I own that won't slamfire are 28 gauge and 20 gauge TurkeySlayer, but they are Upper Sandusky guns. The mod that keeps them from slamfiring is that the hammer rides the firing pin on a longer arc of travel than before which dissipates the energy needed to dent the primer. Or so I've been told by Zak Amert of Ithaca Guns. Gil
