As the title says I am looking for a #11 nipple for a Knight Bighorn. I think I want to pick up a Red Hot Replacement Muzzleloader Nipple 2 SKU: M900013, but would look at other options. We were out hunting this morning and my Dad was having trouble getting a cap on. When I took a look I noticed the face of the nipple is flattened out somewhat with a slight roll. I was able to make it usable, but want to get him setup right again. I looked at Knight’s website and they seem to be out of stock. Any tips appreciated