Engineer builds 'Batman-quality' grappling gun in only one year

How is it that Batman's grapple gun doesn't dislocate his shoulder

LEGO® DC - LEGO.com for kids

Make It Real: Batman Grappling Hook Gun

Grapnel gun Batman arkham origins (brief review)

Grappling Hook for Can Cannon Launcher

Are there any characters that use a grappling gun as a weapon? I'm

Bat-fan Builds Ultimate Real-life Batman Grappling Gun

New still of Batman and Catwoman : r/DC_Cinematic

This r created a working model of Batman's grappling gun