I didn't think I was ever going to find a way to carry appendix but it finally came together for me, and it only took products from three companies to make it happen. JMCK 2.5 and optic cut 2.0, DSG Dark Wing, and DCC Mod 4 universal clips. The 2.0 is a little more stable and conceals slightly better for me but they are both working very well.
If you're like me and struggle with printing at the beltline this might be the answer for you.