GLOCK 21 Gen 4 45 ACP Pistol - 13 Round

Manufactured by GLOCK
SKU: UG2150203
MPN: UG2150203
Manufactured by GLOCK
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Handguns are regulated by the ATF have restrictions and requirements:
 •Your Entire Order will ship only to a Federal Firearm License holder
•Carriers and shipping methods are limited
•A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarms.



The Glock 21 G4 is a powerful, reliable and time tested semi-auto pistol. This striker fired pistol features a 4.61-inch steel barrel chambered in .45 ACP, 13 round capacity magazine and an overall length of 8.07 inches making it ideal for personal defense. Glock wrapped the barrel with a highly durable and reliable polymer frame to provide a long service life. This lightweight polymer framed pistol weighs just 29 ounces without magazine and the Safe Action trigger maintains a consistent and reliable trigger pull for added confidence. The design of this pistol provides a generous beavertail to guard against slide bite, an aggressive grip texture and a perfectly placed magazine release. This Glock pistol checks a lot of boxes for home defense or personal defense users with a strong steel barrel, durable polymer frame, compact design and simple operation. These features make this Glock a powerful, smooth drawing pistol that easily adapts to any users hands by changing the backstraps. If you are looking for semi-auto, striker fire pistol with the power to handle any situation with confidence than the Glock 21 is a great option.

  • Manufactured by Glock
  • Semi-automatic
  • .45 ACP
  • 4.61-inch barrel
  • Overall length 8.07 inches
  • Polymer frame
  • Steel barrel
  • 13+1 capacity
Glock is committed to Perfection in all their firearms and products. With a loyal following of law enforcement, military, and sport shooters, Glock has become the leading global pistol manufacturer. Renowned for its pistols which are safe, simple, and fast, Glock looks to continue pursuing perfection in design, engineering, and manufacturing. Add a Glock to your personal collection, you will be happy that you did.
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Barrel Length4.61
Caliber Gauge.45 ACP
Frame SizeLarge Frame
Magazine Capacity13
Trigger ActionStriker Fired
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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