You can get liners ( Redman makes them) from Brownells in Iowa. They have a web site. The liners are cheap about $30 each. But there are other makers of liners. Parker Hale used to make a real good one but don't know if they are still available?? I also made a liner using a H&R Model 12 Match bull barrel. Turned it down to about pencil thin to use it, but it shoots real good. But turning a barrel down to use as a liner takes a bunch of time. YES! You gotta get a lathe, they are a bunch of fun! You will never regret buying one. Maybe I will make a couple of barrels and sell them on gunbroker or a similar web site???