How many rounds does a pre-ban Glock 23 magazine hold?

A standard pre-ban Glock 23 magazine holds 13 rounds. The Glock 23 is a compact .40 S&W pistol, and its original factory magazine capacity was 13 cartridges.

The “pre-ban” description generally refers to magazines manufactured before restrictions on magazines holding more than 10 rounds, especially the 1994–2004 federal assault-weapons-ban period in the United States. A pre-ban magazine could therefore retain its original 13-round capacity where later magazines were restricted by local law.

The number can cause confusion because Glock magazines are often interchangeable across calibers or fitted with extensions. A Glock 23 magazine is designed for .40 S&W; a 9mm conversion may accommodate a different number, and aftermarket extensions can increase capacity. Those configurations do not change the standard capacity of the original Glock 23 magazine.

The pistol itself is distinct from the larger Glock 22, whose standard .40 S&W magazine holds 15 rounds. The compact Glock 27, by contrast, uses a shorter standard magazine.