A friend of mine and I are coming up with an idea for a business manufacturing replicas of firearms dating from the late medieval up through the civil war periods. Being that the Civil war does include the use of early repeating rifle designs, I want to make sure that all legal bases are covered. So what requires an FFL to manufacture and sell and what does not? I know that cartridge arms generally require FFL's but that "antiques", being defined of an original, or replica thereof, firearm that was built before 1898, I have also heard that firearms using a form of ammunition, such as pinfire, which is not produced on a commercial scale, are legal to manufacture and deal in without FFL's. So, where am I right, where am I wrong, who should I contact, etc.