1. In a vehicle having a dash panel and having a windshield adjacent the dash panel, the windshield having an opening formed therein, the opening having both a lateral and a vertical extent, a weapons system comprising: closure means normally positioned over the windshield opening, comprising a transparent plate having a pivot rod secured thereto; a closure actuating assembly including a casing fixed to the windshield and having a motor therein, the motor having an extendable and retractable member connected to the pivot rod to effect pivotal movement of the traNsparent plate upon extension and retraction; means for movably mounting a firearm on the dash panel in a position adjacent the windshield opening, including a generally U-shaped saddle; the saddle including a bight portion pivotally mounted on the dash panel, and a pair of generally horizontal arms extending forwardly; sight means, including a sight member having a pair of vertical legs and a U-shaped seat, secured to said horizontal arms; and a firearm including a frame and a barrel removably supported in said saddle, with the frame engaged in the saddle and the barrel positioned in the U-shaped seat.