I have now reached a crisis point with this nipple situation on my Musketoon. I have tried every way possible to remove the percussion nipple from this new Musketoon. It's just not happening with the tools I have at the house. If I can't find a specific wrench which is made for two-sided percussion nipple, I will have to take it to a gunsmith. I have attached a picture so you can see the specific shape of this nipple.Thanks for any help you can provide. I have found a four sided nipples which should work with this carbine; from either track of the wolf or S&S firearms. Before I can get a new nipple; this old one will have to be removed. Thanks for any help you can provide with this issue.