Auto-latching design provides quick and secure gun boot attachment to your vehicle. Bracket is made from rugged high impact, reinforced nylon and coated steel. For use with Stronghold Gun Boot. Defender: Requires Gear Rail for Stronghold (715004089). Maverick Trail, Maverick Sport, Maverick Sport MAX : Requires Gear Rail (715003703). Defender (except X mr models), Defender MAX, Maverick Trail, Maverick Sport, Maverick Sport MAX