I found this video where someone put these small mirrors onto their Zeta Handguards, but they gave no information on how they did it or what parts they used. In this video I described what parts I used and how to put them on. When you first fit the mirror it'll look like it bumps into the handgaurd and that it won't fit. Once you tighten it down all the way you'll be able to make the mirror really stable and the hanguard will move out of the way. These mirrors look soo much better and do not vibrate nearly as bad. The other ones were bigger, but the vibrations they gave restricted the visibility a lot.