Hook Line + 'Stinguisher: Awesome DIY Grappling Hook Gun

How To Make A Grappling Hook Launcher That's Less Good Than Batman's, Mark 1

DIY Batman Grappling Hook! TKOR Batman Grapple Gun Project!

Grandaddy of All NERF Guns: Cool DIY Steampunk Weapon

ResQmax Grappling Hook for Search and Rescue

How To Make a Grappling Gun EASY

Small details on the grappling hook like these fingerprints and dust are pretty neat : r/JustCause

Gunner zip line gun idea : r/DeepRockGalactic

The ResQmax Line-Throwing Gun - Fire Apparatus: Fire trucks, fire engines, emergency vehicles, and firefighting equipment

Grappling Hook Launcher : 15 Steps (with Pictures) - Instructables

Grappling hook

Awesome Homemade Grappling Hook Gun

How To Make A Grappling Hook Launcher That's Less Good Than Batman's, Mark 1