What is the purpose of the M240’s handguard?

The primary purpose of the M240’s handguard is to protect the operator's hands from the heat generated during the firing of the weapon. When the M240 is fired, especially during sustained fire, the barrel can become extremely hot, which poses a risk of burns to the operator. The handguard is designed to create a barrier between the heated parts of the weapon and the hands of the operator, enabling safe handling during operations. This protective feature allows for prolonged use of the weapon without endangering the user, contributing significantly to the operational effectiveness and safety of the firing experience.

While the handguard does assist in providing a better grip and may serve as a mounting point for certain accessories, those are secondary functions compared to its primary role in heat protection.