This is a new AirTronic USA, mil-spec, rifle-length, M203 handguard/heatshield. The internal is formed to conform to the contour of the barrel of an M16 rifle and the external is formed to a special shape. This item is new without a box. These handguards feature a strong lightweight nylon construction and an inner Aluminum heatshield but they do not come with any mounting hardware. These handguards are marked “ASSY-19200-8448377 MFR 1C5Q6”
