Not only does the Brigand handguard withstand the heat of sustained firing, it also rejects barrel heat faster than most handguards. Heat leaves a rifle barrel through convection (air-flow past the barrel) and radiation (infrared ?glow?). Does this exposure mean your hand will get hot? The open-architecture guard will warm up to operating temperature faster: However, under sustained fire the barrel will be cooler and the handguard will cool faster after firing than with any enclosed guard. This improves barrel life and decreases heat signature duration.