PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin Review

The PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin Made a Bold First Impression

The Sig Sauer P938 is a fantastic little 9mm pistol, known for its compact size and 1911-style handling. Standard capacity is often a compromise for concealability, and that’s where extended magazines like the PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin step in, promising added capacity without sacrificing too much in terms of profile. This aftermarket magazine from ProMag claims to boost the P938’s firepower from 6 or 7 rounds to a full 10, hopefully providing a significant advantage in a self-defense scenario.

My quest for a reliable extended magazine stemmed from a desire for added peace of mind during concealed carry. I wanted to increase my capacity without switching to a larger firearm. The allure of 10 rounds in a package only slightly larger than the factory magazine was tempting, and the price point seemed reasonable.

Upon receiving the PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin, my initial impression was mixed. The blued steel finish looked decent, and the magazine felt solid in hand. However, compared to the factory Sig Sauer magazines, the ProMag felt slightly less refined in its construction; the seams weren’t as smooth, and the steel gauge seemed a tad thinner.

I had also considered magazines from Mec-Gar and Sig Sauer themselves. Mec-Gar has a great reputation, but didn’t offer a 10-round option for the P938. A factory Sig Sauer extended magazine was significantly more expensive. The ProMag offered the highest capacity at the lowest price point, making it a tempting gamble.

Initially, I was cautiously optimistic. It looked like a potentially viable solution for added capacity. However, the slight difference in feel compared to the factory magazines gave me some reservations regarding reliability.

Real-World Testing: Putting PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin to the Test

First Use Experience

My initial testing ground was the controlled environment of my local indoor shooting range. I ran several drills, focusing on rapid-fire and malfunction clearing. The range offered a consistent backdrop to assess the magazine’s reliability.

Unfortunately, the PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin stumbled right out of the gate. With a full 10 rounds loaded, I experienced multiple failures to feed, where the slide wouldn’t fully chamber the next round. After the initial issue, I loaded only 9 rounds into it. This seemed to alleviate the issue slightly, but still yielded failures roughly every other magazine.

Extended Use & Reliability

Over the next few weeks, I continued to test the ProMag in various scenarios. I ran it through multiple range sessions, as well as incorporating it into my dry-fire practice at home. The goal was to break it in and see if the performance improved with use.

Regrettably, the performance never reached a level I would deem reliable. The failures to feed persisted, and after approximately 200 rounds, I started noticing significant wear on the feed lips of the magazine. This wear further exacerbated the feeding issues. Cleaning was straightforward, but it didn’t improve functionality.

In comparison to the Sig Sauer factory magazines, which have fed flawlessly through thousands of rounds, the PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin was a major disappointment. The inconsistency and eventual degradation of the feed lips made it clear that this magazine wasn’t up to par.

Breaking Down the Features of PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin

Specifications

• Caliber: 9mm. This is the standard caliber for the Sig Sauer P938 pistol.
• Capacity: 10 Rounds. The magazine is designed to hold 10 rounds of 9mm ammunition.
• Finish: Blue Steel. The magazine features a blued steel finish for corrosion resistance.
• Origin: Aftermarket. This magazine is manufactured by ProMag, not Sig Sauer.
• Material: Steel. The body of the magazine is constructed from steel.

These specifications are important because they dictate the magazine’s compatibility, capacity, and durability. The 9mm caliber ensures compatibility with the P938, while the 10-round capacity provides increased firepower. However, the aftermarket origin and steel construction can impact reliability and longevity.

Performance & Functionality

The PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin unfortunately falls short in its primary function: reliably feeding ammunition. As detailed in my testing, I experienced consistent failures to feed, even with reduced capacity. The unreliability makes it unsuitable for self-defense or any situation where consistent performance is critical.

The primary strength of the ProMag is its increased capacity over the factory magazines. The weakness, however, is its unreliable feeding. The magazine doesn’t meet expectations, as it fails to provide the consistent and dependable performance required of a firearm magazine.

Design & Ergonomics

The ProMag‘s design is similar to the factory P938 magazines, with a steel body and blued finish. The build quality, however, is noticeably inferior. The seams are less refined, and the overall feel isn’t as robust.

There isn’t a steep learning curve for using the magazine. It inserts and releases easily from the P938. The ergonomic problems lie in its function, not its handling.

Durability & Maintenance

Based on my experience, the PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin‘s lifespan is questionable. The wear on the feed lips after only a few hundred rounds raises serious concerns about its long-term durability. Cleaning is easy, but it doesn’t address the underlying issues with the magazine’s design and construction.

Accessories and Customization Options

The PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin doesn’t come with any additional accessories. It’s a standalone magazine. Customization options are limited. While you could theoretically replace the spring or follower, it’s unlikely to solve the fundamental issues with the magazine’s design. It is important to note that factory sig sauer parts may not be compatible due to the Promag‘s dimensions.

Pros and Cons of PROMAG SIG P938 9MM 10RD BLUE STEEL – 9mm Caliber, 10 Rounds, Steel, Aftermarket Origin