The ASEK Survival Knife System designed and manfactured by the Ontario Knife Company is the one and only Survival Egress knife chosen by the United States Army to be included in its Air Warrior Equipment System. Do not be fooled by imitations - This is the only ASEK Survival Knife Systems tested and approved by PM Solder and Natick Research Labs to meet the crieria defined by the US Army. This system is a Survival Egress Knife with Plexiglas Breaker, saw teeth, serrations, spear holes, lanyard hole and insulated guard. It comes with an anodized aluminum strap cutter to cut webbing, cord, cloth, etc. It has a screwdriver and a honing rod to keep your knife field sharp. The fire retardant scabbard fits on the pilot`s vests, load bearing equipment, web belt, belt or can be worn on the calf as designed for Air Warrior. The strap cutter fits in the left leg pocket on flights and is a must for medical crews. NATO serial number 1095-01-518-6832.