In my younger days, my friends and I talked a lot about grappling hooks and even dabbled with some homemade ones which we tested out on our backyard fences.  I wanted a real one back then, and I realize I still do today:

You can actually launch anything you want out of this gun that manages to fit in its barrel, and it is quite a bit quieter than the conventional rifle add on versions that use cartridge blanks because this one uses compressed air ( pneumatic ).  The grappling hook pictured is titanium, and has enough line to accurately grapple onto something 60 ft. high 100 ft. away.

By the look of the picture, it’s fitted with an AR-15 stock for comfort and adjustability of length of pull.  That system looks heavy enough to break your nose or teeth if you don’t have a proper cheek weld.

I wonder how you properly aim with those? It looks like there is a top rail that would allow the mounting of an aiming device, but that wouldn’t do you much good considering it would be pointing at the sky. I guess it’s probably a combination of practice and “Kentucky elevation”. Talk about blowing your cover if you missed the shot.

You can visit the product page of the Battelle website – HERE

I wonder how far it can fire a potato?