Comfortable concealment pouch - Safariland 123 Concealment Magazine Holder, Horizontal - Plain Black, Ambidextrous 123-383-2

I am using with double stacked 45ACP and 9mm magazines. Vertical magazine pouches tend to allow the magazine butt plate to dig into my back/side (especially when worn concealed and while sitting). This horizontal pouch eliminates the problem, and the velcro cover helps secure the magazine will still providing quick access.
Pros: comfortable, concealable, accepts wide range of magazines
Cons: takes more belt space than vertical holster, does not close well with short magazines

This review was written in the old system and had content requirements that are different than reviews written today.