Not to worry! There are two things which need to be altered for converting a T/C percussion ignition to flint ignition. FIRST, you have to replace the entire percussion lock and install a flint lock. Here, you have two options which are either go to E-bay and purchase a used T/C flint lock which will fit right in your existing lock mortice or you can contact Bill at L & R Lock Co which make a leaf spring flint lock to fit the T/C mortice. When I last did one, I purchased the L & R which is far superior to the coil spring T/C lock. SECOND, you have to convert the T/C snail type percussion patent breech from percussion to flint. NO NEED TO PURCHASE A FLINT BARREL, as you've been told by other responders. The conversion is quite easy to do yourself and the patent breech need not be unscrewed from the existing barrel. If you would care to E-mail me I will walk you through the process which takes 1/2 hour or refer you to someone who will do it for you. The only part to purchase for the barrel conversion is a stainless steel 1/4-20 touch hole liner and a thread tap and corresponding size drill if you don't already have these tools. You may contact me at for the details of the barrel work. Welcome to flinting, Webb