I think that model SAK is called the “executive” or something like that. I had an idea a while back for a replacement for those small signal mirrors in small kits like that. Check at Walmart, and most have those machines that make pet tags on the spot for you that take a credit card. I noticed one of the tags they offered looked like a military dog tag (size and shape) except it had a mirror finish. I wonder if you could get a blank one. You could even shine it up even more with some jeweler’s rouge and a Dremal. You could use as is, or drill a small hole in the center for aiming. It would take up a lot less room in a kit. You might even be able to sharpen one edge to use it as a knife, or a ferro rod scraper.