I'm not a huge fan of the Air Force survival knife. I've had one for a few years now, but it hasn't really lived up to my expectations. #1 - I've heard 3 or 4 stories from seperate sources, including my old man, about them breaking or snapping with a level of use that might be expected during a survival episode. #2 - the strike plate for "hammering" on the bottom of the handle has come loose on mine. I only used it once, on some wooden tent pegs (though admittedly the ground was cold and somewhat hard). #3 - I think the "saw" is faulty advertising - it sucks on wood and I've since learned that it is for Plexiglass. Nonetheless, it tears up a baton in a heart beat. #4 - while a good idea, the sharpening stone is less than magnificent. I've had trouble putting/maintaining an edge on the knife with the included stone.
For the approx 30 or 35 bucks I paid for it, I think I could have gotten a lot more knife for my money if I went with another option.
Matt