An innovative mechanical design using opposed cutting surfaces, New Archery ProductsĀ® KillzoneĀ® Swingfire Mechanical Broadhead gives bowhunters deadly pass-through performance. Using elements of NAP's popular Killzone Slingblade and SpitfireĀ® DoubleCrossĀ®, this broadhead flies true from today's most powerful bows. Housed in a micro-grooved aluminum ferrule, this broadhead's innovative blade design features 4 distinct, opposing cutting surfaces that reduce friction after contact for deeper penetration and energy conservation through the game. These durable, rear deploying DiamizeĀ® blades open to deliver a wide 2" cutting diameter for large blood trails. Ferrule comes tipped with a cut-on-contact Trophy TipĀ®, a hardened carbon steel tip that delivers deep penetration through bone, hide, and tissue. 100 grain. 3 pack.