I recently bought this trigger guard and it was advertised as a "NOS" IHC trigger guard. It looks as described, however, it has a round raised spot on the bottom of the bow. I have several known HRA and SA trigger guards and all of them are simply smooth in that area. My question, is that a characteristic of an IHC trigger guard?
https://www.milsurps.com/images/impo...IMG_4290-1.jpg