The lock of a firearm is the system used to ignite the propellant. Types of lock include snaplock, matchlock, wheellock, flintlock, modern percussion, and experimental electronic types, such as the railgun and coilgun. A complete firearm often consists of lock, stock, and barrel. The general mechanism for handling ammunition is known as the firearm action.
 See also
- Flintlock mechanism
- Bolt action
- Falling block action
- Rolling block
- Semi-automatic rifle
- Pennsylvania archaeologist, Pennsylvania archaeologist, Vol.36-40, p.13, Society for Pennsylvania Archaeology, 1966.
- Penny cyclopaedia of the Society for the Diffusion of Useful Knowledge, Penny cyclopaedia of the Society for the Diffusion of Useful Knowledge, Vol.1, p.375, C. Knight, 1833.