Klingon Assassin Rifle from Star Trek VI: The Undiscovered Country (Paramount, 1991).

Original prop Klingon assassin sniper rifle constructed of cast resin with metal substructure, outfitted with a scope mounted on a hinge, allowing it to swivel for a right- or left-handed operator. Measures approximately 46" in length and exhibits age and production wear with some surface scratches to black finish. Featured on page 269 in the book The Art of Star Trek by Judith and Garfield Reeves-Stevens (Simon & Schuster, 1995). Comes with a COA from Heritage Auctions. From the Collection of Greg Jein.