G.I. Joe accessory. It had a rope and grapple hook that would allow a G.I. Joe figure to climb up mountains or something.

G.I. Joe, mike's collection

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Future GI Joe Classified Series Figure Concepts - Toy Habits

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Find many great new & used options and get the best deals for GI JOE-Hall of Fame-MOUNTAIN ASSAULT MISSION GEAR Grappling Hook Launcher 1993 at the

GI JOE-Hall of Fame-MOUNTAIN ASSAULT MISSION GEAR Grappling Hook Launcher 1993

Full List GI Joe Classified Series Pipeline Reveals - Toy Habits

HIT & RUN v2 mike's collection

GI Joe Vintage Action Figures Guide – AFR Action Figure Resource

GI JOE Accessory- Grappling Hook - FOR 12 ACTION FIGURE 1/6 SCALE-MF

Forgotten Figures: 1999