The Glock 21 Gen4, a full-size .45 ACP pistol, is a popular choice for many shooters, and a crucial component of its performance is the magazine. Understanding Glock 21 Gen4 magazines—their capacity, reliability, and available upgrades—is essential for both new owners and seasoned Glock enthusiasts. This guide delves into the specifics, providing you with the knowledge to choose the right magazine for your needs.
Understanding Glock 21 Gen4 Magazine Capacity
The standard Glock 21 Gen4 magazine holds 13 rounds of .45 ACP ammunition. This capacity is significant for a full-size pistol, offering substantial firepower in self-defense or competitive shooting scenarios. However, the market offers extended magazines that significantly increase this capacity. These extended magazines often add an inch or more to the overall grip length, which some shooters find comfortable, while others might find it affects their handling. It's crucial to consider your hand size and shooting style before opting for an extended magazine.
Reliability: A Cornerstone of Glock Magazine Performance
Glock magazines are renowned for their reliability. The Gen4 magazines, in particular, benefit from improvements in design and manufacturing processes. Features like the improved follower design and reinforced magazine body contribute to smoother feeding and reduced malfunctions. However, like any firearm component, proper maintenance is key. Regularly cleaning and lubricating your Glock 21 Gen4 magazines helps ensure consistent, dependable performance. Inspecting the magazine body and follower for any signs of wear and tear is equally important, especially after extended use or exposure to harsh conditions.
Common Magazine Issues and Troubleshooting
While Glock magazines are generally reliable, occasional issues can arise. These might include:
- Failure to feed: This can be caused by damaged or dirty magazines, weak magazine springs, or even ammunition issues. Cleaning and lubricating the magazine, inspecting the follower, and trying different ammunition types can often resolve this.
- Failure to lock back on empty: A weak magazine spring is a common culprit here. Replacing the magazine spring is often the solution.
- Magazine drop issues: This could be related to wear and tear on the magazine catch or the magazine itself. Inspecting these parts for damage is crucial.
Glock 21 Gen4 Magazine Upgrades and Alternatives
The aftermarket offers a range of upgrades and alternatives for the Glock 21 Gen4 magazine. These options cater to various needs and preferences:
Extended Magazines:
As mentioned, extended magazines offer increased capacity, providing more rounds without reloading. However, they might change the balance and concealability of the pistol.
Magazine Springs:
Replacing the magazine spring with a new, high-quality spring can improve reliability and feeding, especially in older magazines. A stronger spring can help ensure consistent feeding even when the magazine is nearly empty.
Base Plates:
Different base plates can offer improved grip texture, altered magazine length, or even add features like a pinky extension for enhanced comfort.
Alternative Manufacturers:
Several reputable manufacturers produce aftermarket Glock 21 magazines, offering various features and price points. While Glock magazines are usually preferred for their reliability, many third-party options provide comparable quality at a potentially lower cost. Always research and verify a manufacturer's reputation before purchasing aftermarket magazines.
Conclusion: Choosing the Right Glock 21 Gen4 Magazine
Selecting the right Glock 21 Gen4 magazine hinges on your individual needs and shooting style. While the factory magazine is a reliable option, understanding the availability of extended magazines, upgrades, and alternative manufacturers empowers you to optimize your firearm's performance. Prioritize regular cleaning, inspection, and replacing worn components to maintain peak reliability. Always remember to practice safe firearm handling and storage.
