Which component is the spring-loaded metal pin that strikes the primer of the round, causing the round to fire?

Which component is the spring-loaded metal pin that strikes the primer of the round, causing the round to fire?

• A. Solenoid
• B. Breech Assembly
• C. Firing Pin
• D. Gun Box

Answer: (C)

The main idea is how ignition starts in a firearm: a spring-loaded pin delivers the impact to ignite the primer. When the trigger is pulled, the firing mechanism releases and drives this metal pin forward with force. The tip of the pin strikes the primer on the base of the cartridge; that impact detonates the primer, which ignites the powder charge inside the case. The rapidly expanding gases then push the bullet down the barrel. That’s why this component is the firing pin. It is specifically the piece designed to strike the primer. A solenoid is an electrical actuator and isn’t the standard mechanism for striking primers in typical firearms. The breech assembly houses and supports the cartridge and allows chambering and extraction, but the actual ignition strike comes from the firing pin. A gun box isn’t a firearm component at all.

The main idea is how ignition starts in a firearm: a spring-loaded pin delivers the impact to ignite the primer. When the trigger is pulled, the firing mechanism releases and drives this metal pin forward with force. The tip of the pin strikes the primer on the base of the cartridge; that impact detonates the primer, which ignites the powder charge inside the case. The rapidly expanding gases then push the bullet down the barrel.

That’s why this component is the firing pin. It is specifically the piece designed to strike the primer. A solenoid is an electrical actuator and isn’t the standard mechanism for striking primers in typical firearms. The breech assembly houses and supports the cartridge and allows chambering and extraction, but the actual ignition strike comes from the firing pin. A gun box isn’t a firearm component at all.