Rivarossi/AHM coach coupler adapter

For converting HO scale Rivarossi and AHM coaches that have the long non-standard horn hook on the truck to accept a standard Kadee knuckle. This adapter snaps into place like the original knuckle did, and provides a normal sized draft gear box for your choice of coupler. I put Kadee whisker couplers in mine for easy assembly as the whisker couplers have integrated spring wires instead of needing a separate spring plate.

Can be printed in PLA or ABS using an 0.4mm nozzle and standard settings. I've also printed some on a Resin machine using Anycubic ABS-like pro 2, which is flexible enough to snap in and may be easier to get a clean look with due to the elimination of visible layer lines.