When my left wrist was broken and in a big cast, I carried on my right side. I couldn't draw a mag with my left hand. If I wanted to reload, it would be (as taught) to insert the gun back into the holster and insert a mag. So, I put one of those Glock made little mag pouches in back of the gun's holster. Thus, I could draw the mag and put it into the gun. That worked in this special circumstance.