Find replacement magazines for your handgun, including extended handgun magazines, at Jason Ammo + Outdoors.Best HANDGUN Ammo

Although some single-shot pistols exist, most pistols these days are semi-automatic handguns that load cartridges from a detachable magazine located in the grip. Unlike revolvers, which are typically limited to up to six or seven rounds, modern pistols can carry up to 17 rounds in a magazine.