What component of a firearm strikes the primer of a cartridge, igniting the gunpowder? The chamber b The trigger The grip d The firing pin

## Step 1<br />The question is asking about the component of a firearm that strikes the primer of a cartridge, which in turn ignites the gunpowder. The options provided are the chamber, the trigger, the grip, and the firing pin.<br /><br />## Step 2<br />The chamber is the part of the firearm where the cartridge is placed. It does not strike the primer of the cartridge.<br /><br />## Step 3<br />The trigger is a lever that the shooter pulls to fire the gun. It does not strike the primer of the cartridge.<br /><br />## Step 4<br />The grip is the part of the firearm that the shooter holds onto. It does not strike the primer of the cartridge.<br /><br />## Step 5<br />The firing pin is the part of the firearm that strikes the primer of the cartridge. When the trigger is pulled, the hammer strikes the firing pin, which in turn strikes the primer of the cartridge. This action ignites the gunpowder, causing the bullet to be fired.