noun
- the part of a breech-loading firearm that closes the breech and contains the firing mechanism
Usage: firearms
Examples
- The gunsmith carefully removed the breechblock for cleaning.
- A damaged breechblock can cause the rifle to malfunction.
- The breechblock slides back to allow loading of ammunition.
- Modern artillery pieces have sophisticated breechblock systems.
- The breechblock must be properly aligned before firing.
- He inspected the breechblock for signs of wear.