Tungsten dart barrel Barrel forms the main part of 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 xiamen eternal tungsten, we can make w-ni-fe barrel, w-ni-cu barrel, w-ni-cu-fe barrel, etc for tungsten dart. Also, we can make products according to customer demand. 2ba