Matt Jacques of Victory First recently posted a very clever hack that involves some glow in the dark (GITD) tape and an AR-15. It sounds cool already, right?
He places two pieces of GITD tape oriented in a “T” shape on the bottom of his carbine grip. This not only shows the position the carbine in a dark room but it also indicates the orientation allowing the user to quickly locate and index the rifle. Now that is simple and clever!