US Military issue Helmet Face shield.NSN 4240 01 182 6406 manufactured by Technical Plastics Inc No.Attleboro, MA.02760 .Tiltable, Clear Plastic, Replaceable,Supported by headgear. Fits all sizes of US Military Kevlar Helmet,M-1 and PASGT Helmet.I also have many unboxed used shields and will consider bulk offers for these.Please email questions.Thanks.