Definitions for: Breechblock

[n] a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing

Webster (1913) Definition: Breech"block, n.
The movable piece which closes the breech of a breech-loading
firearm, and resists the backward force of the discharge. It
is withdrawn for the insertion of a cartridge, and closed
again before the gun is fired.

Synonyms: breech closer

See Also: block, blockage, breech, closure, occlusion, rear of barrel, rear of tube, stop, stoppage

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