What are the cycles of function in firearms operation?

The cycles of function in firearms operation encompass a series of specific mechanical actions that occur every time a firearm is discharged. The correct answer includes the detailed steps that illustrate how a firearm operates when a round is fired.

Feeding is the process by which a cartridge is introduced into the firearm from the magazine. Chambering follows, where the cartridge is pushed into the chamber, making it ready for firing. Locking is when the action of the firearm ensures that the chamber is sealed tightly to contain the pressure generated when the cartridge is fired. Firing involves the ignition of the primer, which ignites the powder within the cartridge, causing the projectile to be expelled from the muzzle.

After firing, unlocking occurs, which allows the bolt to retract from the chamber. This leads to extracting, where the spent cartridge case is removed from the chamber. Ejecting follows, as the spent case is expelled from the firearm, and finally, cocking prepares the firearm for the next shot by resetting the firing mechanism.

This comprehensive sequence provides a clear understanding of how firearms function and is essential knowledge for anyone involved in firearms operation, maintenance, or training.