This type of sheath works well with any knife with a small finger guard i.e. Fallkniven, Bark River, Swamp Rat Rodent, Benchmade Bushcrafter, and many custom knives.
Belt loop can be easily replaced for a different length or when damaged.
Belt loop goes through a slot in the sheath and is secured by two Chicago screws.
NL4 sheath with the Chicago screw retention adjustment. Retention strap added for security. The S1 sheath was molded around the thick part of the handle - holds the knife in place securely.