The ‘TAIL’ uses compressed air, so there’s none of that noise you’d get with an explosive gunpowder-driven grappling hook gun. So noisy midnight raids are now a thing of the past! Phew, what a relief.
This pneumatic launcher grappling hook gun by Battelle accurately fires a titanium grappling hook and Kevlar line 100 feet high and sixty feet away.
It gets better, you can also stick other objects down the barrel and fire.
Unsure on how much one of these would cost but go to www.battelle.org for more information