First Thoughts on the PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin magazine promises to be a cost-effective solution for Smith & Wesson SD40 owners needing extra capacity. With its blued steel construction and 15-round capacity, it aims to provide reliable feeding for the popular .40 S&W cartridge. Can this aftermarket option from PROMAG truly compete with factory magazines?
My need for this product arose from a desire to have more magazines for my SD40 at the range. Factory magazines are often expensive, and I wanted to see if a more budget-friendly option could deliver comparable performance.
Upon receiving the PROMAG magazine, I immediately noticed its solid steel construction. The blued finish appeared even, and the magazine felt substantial in hand. It was heavier than the factory magazine, which initially gave me a sense of confidence in its durability.
Compared to a factory S&W SD40 magazine and a Mec-Gar magazine (another reputable aftermarket brand), the PROMAG appeared less refined in its finish. The welding seams were more visible, and the bluing wasn’t as deep. However, the price difference was significant, making it an appealing option if performance held up.
My initial impression was cautiously optimistic. The build felt robust, but the slightly rough finish raised questions about potential feeding issues. I was eager to put it through its paces at the range.
Real-World Testing: Putting PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin to the Test
First Use Experience
I tested the PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin magazine at my local outdoor shooting range. The weather was clear, and the temperature was around 70 degrees Fahrenheit. I loaded the magazine with 15 rounds of Federal American Eagle .40 S&W ammunition.
During the first loading, I noticed the spring felt stiffer than my factory magazine. It required more effort to load the final few rounds. Upon inserting the magazine into my SD40, it locked in securely with an audible click. The first few rounds chambered and fired without issue, but around the 7th or 8th round, I experienced a failure to feed.
The slide locked back halfway through the magazine, indicating an issue with the follower or spring. I cleared the malfunction and continued shooting. I experienced similar failures every few rounds throughout the first 50 rounds fired.
Extended Use & Reliability
After several weeks and approximately 300 rounds fired through the PROMAG magazine, the reliability issues persisted. Failures to feed were less frequent, but they still occurred. The magazine also exhibited some difficulty seating fully when loaded to its full 15-round capacity.
Visually, the magazine showed minimal signs of wear and tear. The blued finish remained intact, and there were no dents or bends in the steel body. However, the internal spring seemed to be losing some of its tension.
Maintenance involved regular cleaning and lubrication after each range session. I used a bore brush and solvent to clean the inside of the magazine body and a light coat of oil to prevent rust. Disassembly for cleaning was straightforward. Overall, the maintenance was no different than with my factory magazines.
Compared to my experience with factory S&W magazines, the PROMAG fell short in terms of reliability. Factory magazines have consistently performed flawlessly, while the PROMAG exhibited consistent, albeit diminishing, feeding issues. The Mec-Gar magazine, while more expensive, also proved more reliable during my testing.
Breaking Down the Features of PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin
Specifications
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin features the following specifications:
- Caliber: .40 S&W: Designed specifically for the .40 S&W cartridge, a common and effective round for self-defense and law enforcement.
- Capacity: 15 Rounds: Offers an increased capacity compared to standard 10 or 12-round magazines, providing more rounds before needing to reload.
- Finish: Blued Steel: A traditional blued steel finish aims to provide corrosion resistance and a classic aesthetic.
- Origin: Aftermarket: Manufactured by PROMAG as an aftermarket alternative to factory magazines.
- Material: Steel: Constructed from steel for durability and resistance to deformation under pressure.
These specifications are crucial for several reasons. The .40 S&W caliber dictates the magazine’s compatibility with specific firearms. The 15-round capacity enhances firepower. The steel construction ensures longevity.
Performance & Functionality
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin aims to provide reliable feeding and function in S&W SD40 pistols. However, my testing revealed some issues with its performance. While it generally loaded and seated properly, it suffered from occasional failures to feed, particularly during initial use.
The magazine’s strength lies in its increased capacity and robust steel construction. The weaknesses include inconsistent feeding and a stiff spring. It partially met my expectations, providing more rounds than standard magazines but failing to deliver the same level of reliability as factory options.
Design & Ergonomics
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin features a simple, functional design. The blued steel body is well-formed, but the finish isn’t as refined as factory magazines. The weight feels substantial, contributing to a sense of durability, but could also make carrying multiple magazines slightly less comfortable.
The magazine is relatively user-friendly, requiring no special tools or modifications for installation. Loading can be stiff, especially when new. There is a slight learning curve to effectively load the magazine to its full capacity without excessive force.
Durability & Maintenance
The steel construction suggests good long-term durability. After several range sessions, the magazine showed minimal wear. Regular cleaning and lubrication are essential to prevent rust and ensure smooth operation.
Disassembly is straightforward, allowing for thorough cleaning. The PROMAG appears to be relatively easy to maintain and repair, assuming replacement springs and followers are available. The steel body should withstand regular use without significant degradation.
Accessories and Customization Options
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin is a standalone product and does not come with any accessories. There are no readily available customization options for the magazine itself. Compatibility with aftermarket base pads designed for S&W SD40 magazines may exist, but was not tested.
Pros and Cons of PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin
Pros
- Increased 15-round capacity offers more firepower compared to standard magazines.
- Durable steel construction provides resistance to wear and tear.
- More affordable than factory S&W magazines.
- Easy to disassemble and clean.
- Functions (albeit with some issues) in S&W SD40 pistols.
Cons
- Prone to failures to feed, especially when new.
- Stiff spring makes loading difficult.
- Blued finish is less refined than factory magazines.
Who Should Buy PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin?
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin is perfect for budget-conscious shooters who need extra magazine capacity and are willing to accept a slight compromise in reliability. It is suitable for range use and training where occasional malfunctions are acceptable. It may also appeal to those who need a high number of magazines and cannot afford factory options.
Those who prioritize absolute reliability and depend on their firearms for self-defense should skip this product. Instead, they should invest in factory S&W magazines or other reputable aftermarket brands like Mec-Gar.
A must-have modification would be a replacement spring from a known manufacturer if reliability issues persist after a break-in period. Polishing the follower and internal surfaces could also potentially improve feeding.
Conclusion on PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin
The PROMAG SW SD40 40SW 15RD BLUE STEEL – 40 S&W Caliber, 15 Rounds, Steel, Aftermarket Origin offers an appealing combination of increased capacity and affordability. However, its reliability issues prevent it from being a top recommendation. The price is justified if you understand its limitations and are willing to work through the initial break-in period and potential malfunctions.
I would cautiously recommend it to shooters on a tight budget who need extra magazines for range use. For self-defense or duty applications, I would strongly advise investing in more reliable options. If you’re willing to gamble on an aftermarket magazine, the PROMAG could be worth a try, but be prepared for potential issues.