Are you ready to step your game up? Tungsten, also known as wolfram, is a high density metal that is strong enough for many penetrating projectile military applications. It's a no-brainer to manufacture dart barrels out of this tenacious material. We offer a variety of dart barrel weights from 12 grams to 48 grams that contain varying percentages of Tungsten. If you don't see the darts you are looking for, call us...and we'll get them for you, cheaper.