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Hang on! There's a Real-Life BATMAN Grappling Gun and It Works Pretty Well - Nerdist
Make It Real: Batman Grappling Hook Gun
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Real-Life Batman Gadgets
Make It Real: Batman Grappling Hook Gun
MAKE IT REAL: Batman's Grappling hook!, MAKE IT REAL: Batman's Grappling hook!, By The Hacksmith
Batman
Make It Real: Batman Grappling Hook Gun