New video from Team Blacksheep is about the Echo1 MK9 Training Knife. It's a dummy bladed weapon made of plastic. It's a Tanto-Style Blade that comes with a Hard Plastic Sheath with Metal Clip and can be fixed to M4 or M16 Airsoft guns that have the bayonet lug. Good for Bayonet or Melee training and for that "Knife Kill" in airsoft games.