Doglock

A doglock is a type of lock for firearms that preceded the 'true' flintlock in rifles, muskets, and pistols in the 17th century.

Commonly used throughout Europe in the late seventeenth century,[2] it gained popular favor in the British and Dutch military.

Much like the later flintlock devices, it contained the flint, frizzen, and pan, yet had an external catch as a half-cock safety, known as the "dog".

This type of lock had no internal, half-cock loading position as the later flintlock mechanism contained.

Later flintlocks would contain no such catch, as the half-cock position had been created with the internal parts of the lock.