Glock 21 13-Round Magazine

The Glock 21 13-Round magazine is a factory GLOCK magazine for the popular full-sized Glock 21. With the Glock 21 you get the reliability of the GLOCK design chambered in hard hitting .45ACP. When you use this magazine the capacity of your Glock 21 will be 13+1 rounds of .45ACP, enough capacity to have extended fun at the shooting range.

In stock

SKU MF21013


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.

  • Authentic GLOCK Factory Magazine
  • Designed for the Glock 21
  • 13-Round Capacity
  • .45ACP Caliber

More Information

Brand Glock
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Customer Reviews


Review by Gilbert A.
Verified Buyer

Great product, easy to assemble and exactly what I was looking for. I wished I had found these earlier in 9mm too.

Well Built.

Review by Bruce X.
Verified Buyer

Very nice product well package, the magazine's are easy to load, Shipping was Great..

Glock 21 45m Mags are a perfect fit!

Review by Blase M.
Verified Buyer


Excellent service, timely shipping and

Review by Jameel A.
Verified Buyer

Excellent service, timely shipping and the product is exactly what was advertised. I am a happy customer who will return.

Exactly as described

Review by Felipe V.
Verified Buyer

Awesome company exactly as described brand new in glock packaging


Review by Holton G.
Verified Buyer

Received exactly what was advertised two thumbs up!

100% recommend

Review by Joesph H.
Verified Buyer

Couldn’t find any factory G21/41 magazines anywhere until I found this place on google and they had exactly what I needed for my g21/41 and the delivery was very quick will be my go to for extra mags for now on

Great value and received quickly

Review by Danh Y.
Verified Buyer

Great value and received quickly after ordering

Great buy

Review by Lamarr F.
Verified Buyer

Great buy

The 21sf mag won’t stay

Review by Aarin A.
Verified Buyer

The 21sf mag won’t stay in the gun.

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