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The guys head to Colorado for an extravaganza of military collectibles; shooter fires a MAC 10 submachine gun, the iconic weapon of Hollywood movies like "Pulp Fiction." Sean examines a 76-pound bar of silver that may have come from the most famous Spanish shipwreck rescue in history. Hammer inspects what appears to be an authentic Keris sword with magical properties. Jim goes to the shooting range with a Civil War re-enactor to see if his 1853 Enfield rifle fires.