I tried the hollow handle concept with my M-6 survival rifle.After extensive gunsmithing,I added a sealed tube that fit inside the .410 barrel.With additional storage in the buttstock I had a backup redundancy with all the basics.When I actually carried the rifle reality struck.I was much more likely to lose the rifle than the gear in my pockets.With this caveat Id list the standard basics;fire making,water purification tablets,button compass,medication,whistle and paracord wrapped around the sheath.I tape a credit card sized diamond hone under the cord.<br><br>