A Barrel forms the main part of a dart. Tungsten is a very dense material, so tungsten dart can be made quite slim as to give user a safe and easy grip. Commonly, the barrel material is tungsten based heavy alloy billet. At China Tungsten Online, we can make W-Ni-Fe barrel, W-Ni-Cu barrel, W-Ni-Cu-Fe barrel, etc for tungsten dart. We also can make products according to customer demand.