I have been carrying the Glock 21 in the appendix position with a spare magazine opposite it. I so not know why there is so much complaining about the size; it worked just fine. The gun was easy to carry and no hot spots developed so long as it was properly positioned. Holster was one of mine with Discreet Carry Concepts clips and a wedge. Belt was a Kore Essentials tactical with appendix carry buckle. The magazine was carried in a JM Custom Kydex AIWB mag holder. It was an all around good day of carry!