Definitions Flashcards
Headspace
The distance from the breachblock to that part of the Chamber which stops Ford movement of the cartridge case.
Disconnecter
A device incorporated into the action of a weapon which prevents the firing of more than one shot for one pull of the trigger or which prevents the weapon from being fired until the action is fully closed.
Trigger
A finger actuated lever used to activate the firing mechanism firing the weapon.
Sear
A component retained under Spring tension that releases, by means of a trigger, either a firing pin hammer, or bolt.
Breechblock
Hey component that seals the breach and blocks gases from the fired cartridge to the rear of the chamber. (Bolts and rifles slides in pistols)
Muzzle break
A device at the muzzle end of the weapon which deflects the emerging powder gases. The energy imparted by this act of deflection pulls the weapon forward to offset some of the rearward motion of recoil.
Flash suppressor
A three or four pronged device attached to the muzzle of a weapon designed to cool the hot gas as it leaves the muzzle behind the round, cooling the gases reduces The Flash
Firing pin
The part of the firing mechanism that strikes or contacts the primer of the cartridge to cause ignition to fire the weapon
Ejector
A cam or projection inside the receiver against which the cartridge case strikes and is thrown clear of the mechanism after it has been drawn from the chamber by the extractor
Extractor
A component that engages the rim or extractor groove of the cartridge case while the cartridge is in the chamber. After firing the extractor withdraws the case from the chamber when the action opens
Trajectory
Rising branch
Maximum ordinant
Falling branch