Glock 21


Overall Length 8.03 in (204 mm)
The Glock 21 is the longest handgun in the Glock series, with a barrel length of 4.6 inches (117mm). The barrel and slide are stainless steel, blued during production to achieve a black finish that resists corrosion. The frame is a polymer with high-performance glass-filled nylon panels at selected points on both sides of the structure and three interchangeable backstraps (small, medium, and large).


The G21 is a semi-automatic, recoil-operated firearm. The magazine capacity is 15 rounds and the gun holds an additional one in the chamber. It uses 9x19mm Parabellum ammunition and has a maximum effective range of 50 meters (160 ft)

Barrel Length 4.60 in (117 mm)

The barrel length of a Glock 21 is 4.60 inches or 117 millimeters. It is best to rifle with six grooves and a right-hand twist, which means that the rifling spirals clockwise from the breech to the muzzle. Polygonal rifling uses hexagonal shapes instead of round designs in its interior surface to provide better accuracy at longer distances than traditional rifling does


Category: Product ID: 7108




The Glock 21 Gen4 delivers the legendary stopping power of the .45 AUTO round with a high magazine capacity of 13 rounds. The Modular Back Strap design on the G21 Gen4 allows users to customize the grip to fit their hand while retaining the more petite size frame. The Glock dual recoil spring assembly dramatically improves the accuracy and reliability of the G21 Gen4, making it an excellent choice for a day at the range or competition shooting. The G21 Gen4 is a reliable and durable option for all shooters.

Glock 21 

The Glock 21 is a popular handgun for sale at Mid West Ammunition Shop. It’s also known as the G21, a semi-automatic pistol used by civilians and law enforcement officers.
The G21 is one of the most widely used handguns in the world today, operating on a single-action principle with no external safeties (ejection mode). This makes it incredibly easy to use but still highly reliable under stress situations where you might need to shoot quickly or in close-quarters combat situations where there isn’t much room for error if your finger slips off of that safety button during an emergency!


The Glock 21 is a semi-automatic pistol chambered in .45 ACP. It has a polymer frame and a steel slide, making it lightweight and durable. The barrel is 4.6 inches long, and the gun’s overall length is 8.07 inches. The gun has a capacity of 13 rounds in the magazine and fired in either single or double-action mode. The sights are adjustable, and the weapon has an accessory rail for mounting lights or lasers.


The Glock 21 is a reliable and accurate firearm. It is easy to use and maintain and relatively lightweight compared to other pistols in its class. The gun is also very durable and can withstand harsh conditions without malfunctioning. The adjustable sights make it easy to customize the weapon for different shooting scenarios, and the accessory rail allows for the addition of lights or lasers.

The G21 has several features that make it an appealing option for anyone who wants to learn how to shoot better or improve their shooting skills. One of these features is its size: it has a barrel length of 4 inches, making it easier for you to handle this firearm when you are learning how to shoot accurately with both hands (right-handed shooters hold theirs with the support hand underneath). It also comes standard with three magazines to keep shooting without interruptions caused by frequent reloading (Glock’s other models come standard with two mags).


There are many aftermarket parts available for the Glock 21, including extended magazines, triggers, barrels, slides, and more. These parts can be used to customize the gun for different shooting scenarios or to increase its performance. Additionally, there are many holsters available for the G21 that allow for easy carrying and concealment.


The Glock 21 magazine capacity of 13 rounds is one of the main reasons it is so popular. This high capacity allows the user to carry more ammunition without reloading as often. This Glock can be especially beneficial in self-defense, giving the user more time to assess and respond appropriately. The higher capacity also allows more practice shooting, as the user does not have to reload as often. G21 can help improve accuracy and reduce recoil, making it easier to hit targets. Another advantage of the G21 magazine’s capacity is that it is compatible with many other magazines. Users can easily switch out magazines if they need to reload quickly or want to use a different type of ammunition. This makes the G21 an incredibly versatile handgun.


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