The buffer tube nut wrench by boyt is a tool used to install a single-point sling adapter plate.This wrench features three (3) lugs to better fit the buffer tube castle nuts.Along with a comfortable easy grip handle it is equipped with a tuff-steel construction.Type: Buffer Tube WrenchBlade Type: SteelBlade Length: M-4/Car-15/CarbineHandle Description: Rubber BlackSharpener Type: 1No. Of Blades: Rubber Black