Starting to like Kydex!
This was the only single magazine carrier I could find that had 43X listed as to fit. I recently bought my first Kydex holster and now a Kydex magazine holder. In my 50 years+ of a military career then a law enforcement career, I've been a leather guy. But both of my recent Kydex purchases have impressed me. This is a VERY good magazine carrier and has an adjustable tension screw so I can make it hold perfectly for me. This turned out to be a gem of a holder! Love it!!!