Glock 21 .45 ACP 13 Round Gen 4 Magazine

$24.99

  • Factory magazine
  • Fit: Glock 21 pistols
  • Capacity: 13 rounds
  • Caliber: .45 ACP
  • Material: Steel-reinforced polymer
  • Features: Anti-tilt follower, steel wire, and witness holes

Availability: In stock

Brand:

This is a factory OEM Glock 21 13 round magazine chambered in .45 ACP.

This Glock 21 magazine is the most reliable option for your G21 pistol. This Glock 21 mag will perform flawlessly even in the most extreme conditions, featuring a polymer body with full-length steel inserts. In addition, it features other signature Glock staples, such as an anti-tilt follower, steel spring wire, rear witness holes, and an impact-resistant base pad. What’s not to love? 

As with Glock factory magazines, their factory springs may be tough to load out of the box. However, loading and unloading a few times will help loosen the spring and become much more thumb-friendly. If you’re looking for even more thumb-relief, view our selection of magazine loaders. They’re convenient for lengthy range days or during the cold winter!

Please note that this Glock magazine fits other doublestack Glock pistols chambered in .45 ACP, such as the Glock 30.

Be sure to keep your Glock 21 running at peak performance with fresh mags. Pick up a few today!

Product Details

Weight 6 oz
Brand

Caliber

Capacity

Color

UPC

764503210136

Manufacturer Part

MF21013

Customer Reviews

Based on 244 reviews
96%
(234)
2%
(5)
1%
(2)
1%
(2)
0%
(1)
J
Joel

good company to deal with!

A
Angelo
Glock 21 .45 ACP 13rd Mag

Excellent quality and reliable.

P
Paul W.
Great mags

Great site for Glock mags, easy fast and dependable!

J
James N.
.45 Glock mags

Love the mags and oh, Mag Shack is awesome. These arrived within two days of ordering. Great service and a great product.

L
L L.
Outstanding

Outstanding Service and delivery!