not sure on the size, usa knife maker has different sizes. Do you have calipers to measure the distance between the handle slabs? A ruler might be good enough. You also need to know what size screws will be going through the standoffs and whether they need to threaded or not. If you check out that site, there will be many options with descriptions that should help you choose which ones. Did not like the Techno, but if I had one, I would do the exact same thing, that blue bumpy thing is ugly.