Let’s Talk About ProMag Sig Sauer P938 9mm Luger Pistol Magazine
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine aims to provide a reliable, higher-capacity option for the popular P938 platform. Manufactured by ProMag, these magazines promise increased firepower and enhanced ergonomics for concealed carry and range use. This review dives deep into whether they live up to that promise.
My search for a reliable extended magazine for my Sig Sauer P938 stemmed from range practice. Reloading constantly with the standard magazines disrupted my training flow. I wanted something that allowed me to focus on my technique, not on swapping magazines every few shots.
Upon receiving the ProMag Sig Sauer P938 9mm Luger Pistol Magazine, the first thing I noticed was the weight. It felt reassuringly solid, suggesting a robust build. The blued steel finish looked clean, and the polymer baseplate appeared durable enough to withstand repeated impacts during reloads.
I considered Mec-Gar magazines, known for their reliability, and factory Sig Sauer extended magazines. The ProMag offered a compelling price point, especially for a 10-round capacity, making it an attractive option for bulk purchase. I hoped to find a cost-effective solution without sacrificing performance.
My initial impression was cautiously optimistic. The magazine looked well-made, but I knew the real test would be at the range. The higher capacity and lower price point excited me, but I was also prepared for potential issues common with aftermarket magazines.
Real-World Testing: Putting ProMag Sig Sauer P938 9mm Luger Pistol Magazine to the Test
First Use Experience
I tested the ProMag Sig Sauer P938 9mm Luger Pistol Magazine at my local outdoor shooting range. Conditions were dry, sunny, and around 75 degrees Fahrenheit. I ran a variety of 9mm ammunition through it, including Federal American Eagle, Winchester White Box, and my preferred carry ammo, Hornady Critical Defense.
The first few magazines cycled smoothly, but I soon encountered issues with the Hornady Critical Defense rounds. They seemed to hang up during feeding, causing several failures to chamber. This was concerning, especially considering the intended use of this magazine for concealed carry practice.
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine definitely needed some “getting used to”. The first few loads were a bit stiff, requiring extra effort to seat the magazine fully. After about 50 rounds, the action smoothed out somewhat, but occasional failures persisted.
Extended Use & Reliability
After a few weeks and approximately 500 rounds through three different ProMag Sig Sauer P938 9mm Luger Pistol Magazines, the reliability remained inconsistent. The magazines fed FMJ rounds fairly well, but hollow points, especially those with wider mouths, continued to cause problems. The spring tension also seemed to weaken slightly over time.
After multiple range trips, the blued finish showed minor wear marks around the feed lips. The polymer baseplate, however, remained intact despite being dropped on concrete several times. Cleaning was straightforward, but disassembling the magazine for thorough cleaning proved challenging.
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine underperformed compared to my experiences with the factory Sig Sauer magazines. The factory mags fed all types of ammunition flawlessly and maintained consistent reliability over thousands of rounds. In comparison, the ProMag magazines felt less dependable.
Breaking Down the Features of ProMag Sig Sauer P938 9mm Luger Pistol Magazine
Specifications
- Caliber: 9mm Luger
- Capacity: 10 rounds
- Material: Heat-treated steel body with a blued finish; injection-molded polymer follower and baseplate. The heat-treated steel ensures durability.
- Spring: Chrome silicone wire. The chrome silicone wire spring should provide consistent feeding.
- Compatibility: Sig Sauer P938. It is explicitly designed for the P938 platform.
- Condition: New. The magazine comes in new condition.
These specifications influence performance by affecting reliability and durability. The steel body and chrome silicone spring should enhance the magazine’s lifespan. The 10-round capacity offers a significant advantage over the standard 6 or 7-round magazines.
Performance & Functionality
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine offers increased capacity, but sacrifices some reliability. It performs adequately with FMJ ammunition, but struggles with certain hollow point designs. The increased capacity is a definite plus for range training and some carry scenarios.
The biggest weakness is the inconsistent feeding, especially with defensive ammunition. A stronger spring and improved follower design would significantly improve reliability. It meets the basic expectation of holding and feeding rounds, but falls short in consistency and ammunition versatility.
Design & Ergonomics
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine features a standard design, similar to the factory magazines. The blued steel body looks clean and professional. The extended baseplate enhances grip for those with larger hands.
The build quality is decent, but not exceptional. The steel feels sturdy, but the polymer baseplate has a slightly cheaper feel compared to factory magazines. There’s a slight learning curve due to the stiffer spring and occasional difficulty in seating the magazine fully.
Durability & Maintenance
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine should last a reasonable amount of time with proper care. The steel construction resists corrosion, but the blued finish may show wear over time. Regular cleaning is crucial for maintaining reliable feeding.
Maintenance involves disassembling the magazine, cleaning the internal components, and lightly lubricating the spring. Disassembly can be tricky due to the strong spring tension. Replacement springs are readily available, which is a plus for extending the magazine’s lifespan.
Accessories and Customization Options
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine does not come with any additional accessories. No customization options are available for this particular magazine. Compatibility is limited to the Sig Sauer P938 platform and standard 9mm ammunition.
Pros and Cons of ProMag Sig Sauer P938 9mm Luger Pistol MagazinePros
- Increased capacity (10 rounds) compared to standard P938 magazines.
- More affordable than factory Sig Sauer magazines.
- Durable steel construction.
- Extended baseplate enhances grip.
- Suitable for range practice with FMJ ammunition.
Cons
- Inconsistent feeding, especially with hollow point ammunition.
- Spring tension may weaken over time.
- Disassembly for cleaning can be challenging.
Who Should Buy ProMag Sig Sauer P938 9mm Luger Pistol Magazine?
Pros
- Increased capacity (10 rounds) compared to standard P938 magazines.
- More affordable than factory Sig Sauer magazines.
- Durable steel construction.
- Extended baseplate enhances grip.
- Suitable for range practice with FMJ ammunition.
Cons
- Inconsistent feeding, especially with hollow point ammunition.
- Spring tension may weaken over time.
- Disassembly for cleaning can be challenging.
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine is perfect for range shooters who primarily use FMJ ammunition. It could be useful to those seeking increased capacity for training without investing heavily in factory magazines. Those looking to practice reloads, without the expense of factory magazines, can benefit from this product.
This product isn’t ideal for individuals who rely on their P938 for self-defense and require 100% reliability with hollow-point ammunition. It’s also not suitable for those who prefer premium magazines with flawless performance and easy maintenance. Anyone who requires magazines to function in extreme cold or heat should avoid this product.
A magazine loader would be a must-have accessory to make loading easier. Also, a replacement spring kit can extend the life of the magazine should the spring weaken.
Conclusion on ProMag Sig Sauer P938 9mm Luger Pistol Magazine
The ProMag Sig Sauer P938 9mm Luger Pistol Magazine offers an affordable way to increase the capacity of your P938, but it comes with compromises. The inconsistent feeding, especially with hollow point ammunition, raises concerns about its reliability for self-defense purposes. The lower price can be justified if it is only for range practice with FMJ rounds.
The value proposition is questionable if reliability is a top priority. The ProMag mags are cheaper, but the factory magazines offer greater reliability. I would personally recommend it only for range use with FMJ ammunition and not for self-defense.
If you’re on a tight budget and want to experiment with higher capacity magazines for range training, the ProMag Sig Sauer P938 9mm Luger Pistol Magazine might be worth considering. However, I strongly urge you to thoroughly test it with your preferred carry ammunition before relying on it for self-defense. Invest in factory magazines for critical situations.