Which component is explicitly listed as playing a role in the firing step?

Which component is explicitly listed as playing a role in the firing step?

• A. Locking Block
• B. Trigger Return Spring
• C. Extractor
• D. Sear

Answer: (D)

The firing step hinges on releasing the striker to ignite the primer. In a striker-fired pistol, the sear is the component that holds the striker back and controls its release. When you pull the trigger, the trigger movement causes the sear to disengage from the striker, freeing it to move forward and strike the primer. This release-and-fire sequence is exactly what defines the firing step. Other parts have different roles: the locking block manages lockup and release of the breech, the trigger return spring simply resets the trigger position after firing, and the extractor deals with ejecting the spent case after the shot. So the sear is the element explicitly involved in enabling the firing event.

The firing step hinges on releasing the striker to ignite the primer. In a striker-fired pistol, the sear is the component that holds the striker back and controls its release. When you pull the trigger, the trigger movement causes the sear to disengage from the striker, freeing it to move forward and strike the primer. This release-and-fire sequence is exactly what defines the firing step. Other parts have different roles: the locking block manages lockup and release of the breech, the trigger return spring simply resets the trigger position after firing, and the extractor deals with ejecting the spent case after the shot. So the sear is the element explicitly involved in enabling the firing event.