Do you carry a spare magazine? Some people do and some people don’t. It’s definitely something you want to consider doing if you concealed carry, as there are plenty of arguments for and against doing so.
If you’re going to carry a backup magazine, there are a few different ways that people do it.
Some people will stash a spare magazine in a pocket. You can easily hide most magazines in a pocket and conceal that you’re carrying one. However, not all magazines are small enough to hide in a pocket, so not everyone will be able to do this. You can also snag the top round inside the pocket and wind up with rounds floating around in your pants pockets.