Low Profile, Covert and Ready for You to Add Your MSK-1 Knife and Bolt on Your - MSK-1 Mini Knife and Firesteel Kits (NOT Included). Add the ACS™ Nylon Sheath to Extend Versatility of this Sheath. Our Black Kydex Sheath Comes with the Hardware Need to Belt Carry. Right Hand Carry Only. Add Our ACS™ Nylon Sheath for Left or Right-Hand Carry Options.