vent-piece
Noun
Meaning
vent-piece (plural vent-pieces)
(firearms) In a breechloading firearm, a vertical sliding block with a conical plug on its front surface to seal the firing chamber and close the breech.
Noun
vent-piece (plural vent-pieces)
(firearms) In a breechloading firearm, a vertical sliding block with a conical plug on its front surface to seal the firing chamber and close the breech.