Genuine U.S. Military Issue Ichthys on a 24" beaded chain.
Plain "LOW-FLEC" standard finish is designed to be bright, but not reflective. A special proprietary process is used which breaks up the surface into tens of thousands of individual polished pockets. When hit with a bright light, the surface diffuses the light instead reflecting it.
Black Titanium Nitride "TITAN KOTE" is a form of Chemical Vapor Deposition, or CVD. This is a thin-film coating with a chemical and metallurgical bond that results from the reaction between various gaseous phases and the heated surface of a substrate. The final product is a hard, wear-resistant coating with an extremely strong bond to the substrate (stainless steel).
Made by GI Jewelry, an official government supplier.