How to make a retractable grappling gun from THE BATMAN!

Grapnel Hook - Canada

Always wanted a working Batman (1989) grapnel gun prop. So I designed one, completely with CO2 powered hook launcher! Does it actually work? Guess we'll find out soon enough! : r/geek

Analysis: How Realistic are Sci-Fi Gadgets? – The SMCC Beacon

Grapnel Gun, Arkham Wiki

Grapple Gun, Batman Wiki

4 Ways to Make a Grappling Hook - wikiHow

Grapnel Hook - Canada

Fury Martial Arts FP03400 Folding Grappling Hook with Black Cord, Midnight Black : Martial Arts Ninja Weapons : Sports & Outdoors

Wrist-Mounted Grappling Hook 1.1 │ A wacky, but versatile maneuverability item for those who dream of stylish exploration : r/UnearthedArcana

Toy Review: NECA Batman Grapnel Launcher Prop Replicas