James Bond (Pierce Brosnan) bungee-jumps off the top of a tall
dam, and once at the bottom- but before he can rebound- he fires a
grappling hook
down toward the structure, which anchors him in place. The winch on the back of the gun then pulls him down where he
disconnects the bungee cord.
The gun is a lightly modifed
W'Orr Game Products Ranger, changed only by a shortened barrel, the addition of a muzzle bell, the "winch" and
what's probably an Aimpoint red-dot sight. Note where the name of the gun was milled off the side of the rail.
Bond then uses a laser mounted in the red-dot sight to cut his way into an access tunnel.