Minigun Tips I switched the frame each gun was mounted on, so I have a super shrunk vehicle cannon, and an extra long manpack gun. Mounting the Man-pack Attach the rack to the figure's back. Notice I've looped the belt throught the rack. The smaller rack is by the fig's head. Hook the frame in place on the rack. The ammo box can slide into the smaller rack piece either way. Hook the bottom of the smaller rack to the frame. Move the straps so the ammo box is held across the top and the sides. Page updated 4/8/03