The PM003B is precision molded to meet MIL-STD 1913 Picatinny rail specifications. The rail is manufactured from a proprietary black polymer. Attachment to the rifle or carbine handguard is by three (3) machine screws into captured nuts, with mounting lugs protruding from the backside of the rail. The rail allows attachment of a vertical foregrip, flashlight, laser and/or bipod. No permanent modification required includes all mounting hardware.