Looks to be the right carrier/follower assembly bob, the 98 assembly had more of a curl to the carrier, though I did note one I had one must've been an early 98.  The carrier is the forepart of the assembly, the follower the tail part.  At the failing to feed point you've pictured, the "point" of the carrier that juts into the middle of the follower should push that round up onto the top of the follower.  Your rough sideplate, or a weak spring might be the cause of it not doing so.  We're making progress. ;)