How and where do you carry your three spare mags?
Two IWB Galco mag pouch and one in the ruler pocket of my carpenter jeans on left (weak side) leg.
The Glock 31 is IWB chamber empty without a holster full magazine.
The very old Uncle Mikes Nylon Ankle rig has a pocket that a parachute rigger made on it to hold 3 of the bianchi speed strips or a old style 50 round box of .22’s if I carry the Beretta 70S or my newer SW 317 snub revolver .22.
The .22 gets carried lots of times if I am wheel off road or camping or in big city where civil unrest may put me in a Reginald Denny situation.
Most of time the SW Mod 37 .38 is the ankle rig.