The Lone Haranguer
Member
I carry a spare magazine for a reload with any gun. My pistols hold 14 and 15 rounds. If I were to carry a gun with a slim, "single-stack" magazine I might carry two, if for no other reason than it takes up very little extra space. There are several good reasons to do so, chief among them that even with 15 rounds you might still shoot the gun dry; it is prudent to reload after the main "action" is over because you may not know immediately how many rounds you fired; or a "double feed" stoppage that requires pulling out the in-gun magazine.