Hello Naphtali, what your looking for is l7r's Manton flint lock, the size lock is quite small, i've got one on a fifle i built for my wife and dauter, its just perfect for a pistol too, i can not blame you for wanting a awsome lock i myself have 1 JIm chambers lock and 3 L&R locks( manton what your looking at, durrs egg fast lock), and a large quenn ann , and 2 siler' s both large and small , i just gave both silers a modern upgrade by replasing the old frizzens and frizzen springs with their new rollerfrizzens that improved the speed a bunch, and two davis locks that have not seen any stok wood as of yet got all the parts but been too lazy and sorry to gat to work. have you checked with dixie gun works? and muzzleoader builder supply? (
www.muzzleloaderbuilderssupply.com ), tip curtis frontier shop inc. ( they have a phone number , but can be found on the nmlra's web site in the classified section, these guy i do mst if not all my buisness along with trake of the wolf, unfourtionatly the smallest lock your going to find is from r.e. davis and i got a catalog with a phone no. but its from 2-3 years ago and prices have changed.
kevin