In 1968 I put some waterproof matches, a length of nylon cord, fishing kit, snare wire, an x-acto blade and a plastic bag into a hole bored into the butt of my '06. It has been updated a bit since then but I know if I have my rifle I have a better chance than many to make it out of a situation. At the present I am working on an M6, integrating a PSK into it, to go in my BOB. It may not have everything I would like to have in it but hopefully it will have enough to get me out of a bind that I am stupid enough to get into if all I have is the rifle.