With a flint lock firearm, success is all about the lock. Now the cheap locks can be tuned, often by a professional locksmith, but as Mike's (
@Comfortably_Numb) has gained by all his experience, those cheap locks will eventually fail to generate sparks.
@Mtman725 needs to find that locksmith that can tune his new lock. The affordable flintlocks can't afford the manufacturing time to properly tune a lock through the polishing, aligning, hardening, tempering and lubricating with the proper tools that most new to flint locks don't have. Sure, a new gun should be ready to shoot right out of the box, but that just ain't so. The original owner needs to perform all those steps to get that new rifle from an assemblage of new parts all slathered in protective grease to become a reliable firearm. That can be done and we are obligated to help.