Ontario OKC3S Marine Bayonet was designed by the Marine Corps Military to be able to attach to M16 rifles. It has a non-reflective Zinc phosphate finish. The clip-point blade is coated with a proprietary carbon steel formula. The base of the blade has a 1-3/4" serrated section along with a sharpened upper swedge. The grooved handle provides superb grip both with or without gloves. There is a USMC mark on one side 'globe and anchor' logo on the other side of the handle. Drain holes on sheath with strapdown loops facilitates amphibious use. The overall size is 13.25" and it weighs: 15 oz.