I have a beautiful fowler built by Mike Brooks a generation ago. Because of it's age, I was concerned about the obtainability of replacement parts, when needed at some unknowable future date. Mike suggested I contact L&R. They responded to my email inquiry promptly,and asked me to ship the lock to them. They fitted a new hardened frizzen, frizzen and mainspring, and returned them, with the original parts still installed as directed in one weeks time. The original lock and parts still works fine, but I now have replacements for the next generation of shooters. They were a pleasure to deal with, and I am so pleased with the quality of their work and their outstanding customer service, that I would highly recommend them to anyone searching for a fast, reliable flintlock.