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The Glock 21 is a full sized glock designed to fire the .45ACP round. Those who prefer the .45ACP will appreciate that GLOCK has a solution for you with the Glock 21 that provides the legendary GLOCK reliability chambered in .45ACP. With the size of the .45ACP round, the GLOCK design allows for a magazine capacity of 13 rounds which is one of the largest of any semi-auto .45ACP pistol.
This Glock 21 13-Round magazine is the standard full sized magazine that ships with the Glock 21 in states with no magazine capacity restrictions. The Glock 21 was designed to use this magazine to provide a 13+1 capacity to every Glock 21 owner. With 14 rounds of .45ACP ready to fire, you can train longer a tthe shooting range without having to reload as frequently. Extra magazines like this factory GLOCK magazine will ensure you not only train longer but can also be prepared for any situation in the future where magazines may be restricted.