Which phase is directly concerned with the removal of the spent cartridge case from the weapon?

The phase that is directly concerned with the removal of the spent cartridge case from the weapon is the ejecting phase. During this process, the spent cartridge case is expelled from the firearm after firing. This action is crucial for ensuring that the weapon can cycle properly and prepare for the next round to be chambered.

Ejecting involves the interaction of the extractor and the ejector components of the firearm. The extractor grips the rim of the spent case and pulls it out of the chamber. Once the case has cleared the chamber, the ejector then pushes it out of the ejection port, allowing the weapon to be ready to load a new round. This sequence is essential for the semi-automatic and automatic functioning of the firearm, as a proper ejection ensures reliable cycling and operation.

Other phases, such as unlocking, extracting, and cocking, involve different aspects of the firing cycle. Unlocking refers to the disengagement of the bolt from the chamber, and extracting is the act of pulling the cartridge case from the chamber, but the actual expulsion of the case is what defines the ejecting phase. Cocking is related to preparing the firing mechanism for the next shot, but it does not concern the removal of the spent cartridge case.