The Original Operator Survival Tool® 2.0 was designed to be the size of two CR123 batteries so it could be stored in forward grips, pistol grips and butt-stocks commonly found on the AR15. Inside is a carbon scraping tool designed to remove carbon for all of the critical places it builds up. We added flint to be used with the steel scraper tool to produce fire. Lastly we added a ceramic sharpening rod. The orange housing doubles as a handle for the two rods.