The Gunner Protection Kit Tie Bar, part number 6431638-200M1, is a Humvee gunner protection kit component designed for M1113 and M1151 variants. It is identified by NSN 3040-01-535-9715. As a tie bar within the Humvee Gunner Protection Kit, it contributes to the protective hardware assembly used on the M1113 and M1151 platforms.
