Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. weapon components
7. projectile weapon components
8. firearm components
9. [firearm locks and lock components]
10. locks (firearm components)

Narrower term/s

• tube locks
• scent-bottle percussion locks

Anotations

Scope note:

Firearm ignition mechanisms in which a fulminate or gunpowder priming powder is struck and explodes, thereby detonating the propellant. The most developed versions feature a percussion cap, fitted over a nipple screwed into the breech and pierced by a small hole that connects with the propellant; when struck by the hammer, the cap sends a small jet of flame into the propellant, igniting it.