You gotta be talking about the thompson center encore. It breaks down like a shotgun to put your primer in. I have two thompson center encores. One that was the first year they made them its never miss fired once and killed a deer at 234 yards. ANd then mine never miss fired once and killed a deer at 134 yards. THey are very accurate and if u are looking for a mizzleloader that is what u need. They are costly but well worth the money. GOod luck.