What is the primary part to remove to disable a weapon?

• A. Bolt carrier group
• B. Magazine
• C. Trigger assembly
• D. Barrel

Answer: (A)

The crucial idea is that the bolt carrier group is what makes the firearm actually cycle and fire. It houses the bolt, locks and unlocks the breech, extracts and ejects spent casings, and drives the next round from the magazine into the chamber. If that entire assembly is removed, the action can no longer chamber or eject cartridges, and the gun can’t complete a firing cycle. In that sense, removing the bolt carrier group stops the essential mechanical process that makes the weapon operate, effectively disabling it. The magazine only feeds rounds, so without it you can’t load new rounds, but a round could still be chambered if the action is intact. The trigger helps initiate firing, but without the bolt carrier group present, there’s no mechanism to accomplish the required cycling and chambering.