ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine Review

First Impressions of ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine

In a world saturated with aftermarket Glock magazines, the ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine enters the arena promising enhanced durability and increased capacity for the popular slimline pistols. The Glock 48 and 43X have carved a niche for concealed carry enthusiasts who value a balance between size and shootability. The promise of boosting their magazine capacity from the factory 10 rounds to a more respectable 15, without significantly impacting concealability, is inherently appealing.

My quest for a reliable high-capacity magazine for my Glock 43X stemmed from a desire to have more rounds on tap without sacrificing the pistol’s slim profile. Factory magazines are notoriously expensive and aftermarket options often suffer from reliability issues. I’ve tested other extended magazines for Glocks, including some with polymer extensions, but they often felt flimsy and prone to failure.

Upon receiving the ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine, my initial impression was positive. The steel construction felt robust and significantly more confidence-inspiring than polymer alternatives. Picking it up, I immediately noticed that it had a reassuring heft, suggesting a well-built, durable product.

Compared to the Shield Arms S15 magazine, another popular 15-round option for the Glock 43X/48, the ProMag offered a different approach. The Shield Arms magazine requires a metal magazine catch, whereas the ProMag is designed to work with the factory polymer catch, eliminating the need for modifications. While the ETS 17-round magazine offered even greater capacity, its extended length compromised concealability, making the ProMag a more attractive option for everyday carry.

Initially, I was cautiously optimistic. The steel construction and increased capacity were appealing, but I knew the true test would be its performance at the range. I was keen to see if it could deliver on its promises of reliability and durability, or if it would fall victim to the common issues that plague aftermarket magazines.


Real-World Testing: Putting ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine to the Test

First Use Experience

My initial testing took place at an outdoor shooting range on a sunny afternoon. I loaded up several ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazines with 115-grain FMJ ammunition and began running drills. The magazines seated positively in my Glock 43X, locking in place with a solid click.

During the first few magazines, I experienced a couple of failures to feed. The slide failed to fully chamber the round, requiring a tap-rack-bang to correct. After about 50 rounds, however, the magazines seemed to “break in,” and the feeding issues subsided. I tested it in temperatures around 75 degrees Fahrenheit and normal humidity; these feeding issues did not seem correlated to weather.

The ProMag required some familiarity and use before its performance stabilized. There were no obvious physical defects, but the magazine seemed to benefit from some initial cycling.

Extended Use & Reliability

After several weeks and hundreds of rounds fired, the ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine has proven to be reasonably reliable. While the initial failures to feed were concerning, they have largely disappeared. I’ve continued to run a variety of ammunition types through it, including hollow points, with no significant issues.

The magazine shows minimal signs of wear and tear, despite frequent use and occasional drops on hard surfaces. The steel construction appears to be holding up well, with no dents or bends. Cleaning is straightforward; a quick wipe-down with a cloth and occasional lubrication of the spring are all that’s required.

Compared to my experience with some cheaper aftermarket Glock magazines, the ProMag is a clear step up in terms of durability. While it may not be quite as reliable as factory Glock magazines, it offers a viable option for those seeking increased capacity without breaking the bank. The reliability after the first 50 rounds far surpassed my expectations.

Breaking Down the Features of ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine

Specifications

The ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine is specifically designed for use in Glock 48 and Glock 43X pistols chambered in 9mm Luger. It boasts a 15-round capacity, significantly increasing the firepower of these slimline pistols.

The magazine body is constructed of high carbon heat-treated steel, which ProMag claims is TIG-welded for strength and longevity. The magazine spring is made from heat-treated chrome silicon wire, designed for consistent feeding and resistance to fatigue. The baseplate and follower are injection molded from durable polymers.

These specifications are crucial because they directly impact the magazine’s reliability, durability, and overall performance. The steel construction ensures resistance to deformation and damage, while the high-quality spring promotes consistent feeding. The polymer follower is designed for smooth and reliable operation.

Performance & Functionality

The ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine performs adequately, offering a noticeable increase in capacity compared to the factory 10-round magazines. While the initial reliability issues were concerning, they appear to have resolved with use.

The magazine’s primary strength lies in its increased capacity and robust construction. However, its weakness is the initial “break-in” period, during which feeding issues may occur. It mostly meets expectations; offering a higher capacity at a slightly lower price point than some competitors, but with an initial caveat.

Design & Ergonomics

The ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine features a straightforward design, closely mirroring the dimensions of the factory Glock magazine. The steel construction gives it a solid, substantial feel in the hand.

It seats positively in the magazine well and releases easily, making for smooth and efficient reloads. There is minimal learning curve; aside from break-in, it operates similarly to a standard magazine.

Durability & Maintenance

Given its steel construction, the ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine is expected to have a long service life. The heat-treated steel and robust welding should withstand significant abuse.

Maintenance is simple, requiring only occasional cleaning and lubrication. The magazine can be easily disassembled for thorough cleaning if needed.

Accessories and Customization Options

The ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine does not require any special accessories or modifications for use in Glock 48 and Glock 43X pistols. It is designed to function with the factory polymer magazine catch, eliminating the need for aftermarket parts.

The magazine is compatible with a wide range of aftermarket baseplates and magazine pouches designed for Glock magazines. It doesn’t require any specialized or proprietary equipment.

Pros and Cons of ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine

Pros

  • Increased capacity from 10 to 15 rounds.
  • Durable steel construction.
  • Compatible with the factory polymer magazine catch.
  • Lower price point compared to some competitors.
  • Easy to disassemble for cleaning.

Cons

  • Initial failures to feed may occur during the first 50 rounds.
  • May not be as reliable as factory Glock magazines.


Who Should Buy ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine?

The ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine is perfect for concealed carry permit holders who want a higher capacity in their Glock 43X/48 without significantly increasing printing. It is also beneficial for range shooters who want to spend less time reloading.

Those who demand absolute reliability and cannot tolerate any possibility of malfunctions should probably stick with factory Glock magazines. Also, those who have a particularly aggressive carry style might want a more known option for duty weapons.

A must-have modification is to thoroughly clean and lubricate the magazine before first use. Also, cycling the magazine by hand can potentially reduce the break-in time.

Conclusion on ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine

The ProMag Steel Glock 48/43X 9mm 15-Round Pistol Magazine offers an attractive option for Glock 43X and Glock 48 owners seeking increased capacity. Its steel construction provides enhanced durability.

The price is certainly justified given the increased capacity and steel construction, though potential buyers should be aware of the initial break-in period. After several weeks of testing, its reliability has grown on me.

I would cautiously recommend this magazine to those who are willing to accept a slight risk of initial malfunctions in exchange for increased capacity and durability. However, if absolute reliability is paramount, factory Glock magazines remain the gold standard. Consider this a solid upgrade with some caveats.

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