Get a used TC Off of gun broker or auction arms,$250-$300 .50 will do .54 is better.If the lock has problems or anything else goes wrong,TC will fix or replace it free.I have 2 renegades and 1 hawken put together from parts off ebay.One flintlock,2 percussion,1 hawken that I got used 30 years ago and 1 new factory hawken flintlockI got new last year,another renegade,a renegade stock without a barrel,and a hawken barrel without a stock.I have 2 CVA mountain rifles,one of these is going to be converted to flint in the near future. Flintlocks are addictive so beware.