The official bayonet included with the SIG SG 510, aka the Sturmgewehr 57. Stainless steel 9.5 inch blade offers plenty of reach, and was originally intended to serve as a bayonet, fighting knife, and utility tool. Double-edged 9.5 inch stainless steel blade, 0.875 inch thickness Metal tang with spring release Ribbed molded handle 2.875 inch wide hand guard Includes used molded scabbard