This "Sterile" (unmarked except for the C1269 on the ricasso) was from an overrun of a batch he made for Seal Team 2 in Coronado, CA. This ATAK has never been used, never sharpened. It is our understanding that Kevin quit using the black coating some time ago. The blade is 1/4 inch thick at the spine with a maximum depth of 1 3/8 inches. The black G-10 composite handle is extremely durable to heat, cold and abuse and is ergonomically molded to assure a firm grip. Surely a highly collectible knife. Comes with matching kydex ATAK sheath with "C126" on the back. The knife has some sheath marks on the blade, otherwise excellent condition.