M4 is a specialty alloy with extreme wear resistance, usually used in factory tooling. This graceful knife has a harpoon drop point shaped blade with flat grinds and a convex edge. The blade stock is .125 for a great mid weight slicer. The handle is crafted from desert ironwood and it is anchored with one nickel silver loveless bolt and five hand peened nickel silver pins. A NS lanyard tube adds options for comfortable carry and draw. Comes complete with a brown leather pouch style sheath to keep it at hand. This is a hard use knife with great materials and an efficient design. If you are a fan of M4, this is not a material I use often, so get it while you can.