H.S. Undertaker XT Ported Turkey Choke Tube - Put more shot in the kill zone with the Ported Undertaker choke tube. The porting creates wad and shot separation, which leads to more consistent patterns. The end of the choke tube is knurled for easy hand installation. Great for use with lead and copper plated shot. It is able to handle the power of a 3 1/2 inch magnum load. 3 inch long extended choke tubeShoots 2 3/4 to 3 1/2 inch shotgun shellsKnurled end for easy install