Instead of collecting multiple magazine pouches, consider buying a versatile pouch that you can use to easily fit various types of magazines. Rob Pincus recommends a pouch from Safariland for the range or training environment where you might be switching between multiple guns throughout the day. This way you won’t have to rotate between magazine pouches — you’ll only have to switch your holsters. It is also ideal for trying out another person’s gun at the range, because this Safariland pouch is expandable and one size fits all, so you can accommodate any number of different sized magazines.