What is a proper procedure after firing the M240B?

Cooling the weapon down slowly after firing the M240B is essential for maintaining its operational integrity and safety. This procedure is crucial because the M240B, like any firearm subjected to rapid or sustained fire, generates a significant amount of heat. Rapid cooling can lead to thermal shock, which may cause warping or other damage to the weapon. By allowing the weapon to cool down gradually, the risk of such damage is minimized, ensuring that it remains reliable and functional for future use.

The other options, while related to weapon handling and maintenance, do not focus on the immediate necessity of temperature regulation after firing. Checking for jams is important but typically occurs after the cooling process to ensure safety before inspecting the action. Performing maintenance every firing session is a best practice but doesn't address the immediate action necessary right after firing. Inspecting the ammunition belt is also crucial for operational readiness, but this should also happen after the weapon has cooled to ensure that no heat-related issues affect the inspection.