This lock is of Germanic design. Locks of this type were commonly used throughout the colonies by the Masters of Kentucky rifle art. These locks have a quick time by virtue of friction reducing bearing surfaces on the tumbler and sear, cam action, and a shorter stroke. Frizzen has a roller cam and rain sealer on underside of the lid that helps keep your powder dry. It has a thicker bolster, hook tight main spring, one position sear action, and is highly polished internally. Plates measure 5 3/8" x 1". Recommended flint size is 3/4".