Great way to carry a spare mag - Galco PMC Pocket Magazine Carrier

Most comfortable, convenient way I've found to conceal a spare magazine. Keeps my spare mag concealed and in a consistent position. The angle makes it easy to get to and it stays in my pocket when I pull the magazine out. It also protects the magazine from lint, change and keys.
Pros: Inexpensive, thin

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