These are the same pouch "body" as our regular pistol pouches with the addition of a purpose built 2011 kydex insert. Designed for 2011 magazines, these also work well with full size and compact double stack metal magazines such as those used with P320's, M&P's, VP9's, etc.
Due to the GAP's in the pouch, it is intended to be used on belts and will not line up with MOLLE/PALS webbing. It is recommended to be used with belt loops, as WTF straps are not designed to be used with non standard "mini" pals webbing found on belts.