The 2003 Joyride Studios Halo Series 3 UNSC Marine Sergeant Stacker Figure is a vintage collectible from the Halo franchise, featuring a 1:8 scale plastic action figure of a UNSC Marine Sergeant. This toy was manufactured in 2003 and includes an assault rifle as part of the items included. While it was not signed by the manufacturer, it is an original licensed reproduction from Joyride Studios, making it a sought-after item for Halo fans and collectors alike. The figure was displayed at San Diego Comic Con, adding to its appeal for fans of the Halo TV show and video game series.