Replacement shafts for JBL Metal Magnum Series spear guns. Shafts come in 9/32, 5/16, and 3/8" diameters. Heat treated, hardened stainless steel, for high impact resistance and durability. Shafts feature band rest notches and slide ring stop. Available with standard 6mm threads or point, wing, and threads in various sizes. All JBL Metal Magnum and XHD standard replacement shafts are 5/16" diameter. Except the 38 North West which is 3/8"