Grumpy Old Geeks Products Grappler Police Bumper Product Grappler Police Bumper 2 mentions in 1 episode A vehicle mounted device described as using a net to stop a fleeing car. Mentions 186: Back with a Vengeance Nov 18, 2016 59:53 it's called the grappler police bumper 1:00:10 stop a high, high speed pursuit with, uh, with basically some rope