Let’s Dive into ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine
The ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine aims to provide a cost-effective solution for 1911 owners looking to enjoy .22 LR shooting. Marketed by ProMag, this magazine promises compatibility with popular 1911 conversion kits from Kimber, Marvel, and Iver Johnson, offering a higher capacity of 14 rounds. My experience with aftermarket 1911 magazines has been a mixed bag, leading me to approach this review with a healthy dose of skepticism and a yearning for reliability.
I’ve always enjoyed the 1911 platform, but shooting .45 ACP can become expensive. A .22 LR conversion seemed like a logical solution for affordable practice, but finding reliable magazines for these conversions has been surprisingly difficult. I needed a magazine that could consistently feed rounds without constant jams, allowing me to focus on improving my accuracy without the frustration of constant malfunctions.
My initial impression upon unboxing the ProMag magazine was…underwhelming. The polymer construction felt lightweight, bordering on flimsy, compared to the steel magazines I’m accustomed to. I noted the injection-molded follower and the black polymer finish, giving it a very utilitarian look. It didn’t inspire confidence, but I reserved judgment until I could test its performance.
I considered other options, including factory Kimber magazines, but their availability was limited and the price significantly higher. Other aftermarket brands had similar mixed reviews, ultimately leading me to try the ProMag due to its wider availability and lower cost, hoping for the best but prepared for the worst. Honestly, my first impression leaned towards disappointment, fearing another unreliable magazine destined for the parts bin.
Real-World Testing: Putting ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine to the Test
First Use Experience
My initial testing took place at my local shooting range, using my Kimber 1911 with a Marvel Precision .22 LR conversion kit. I brought along a variety of .22 LR ammunition types, from standard velocity to high velocity, to gauge the magazine’s feeding performance across different loads.
The magazine’s performance was initially concerning. With the first few magazines loaded, I experienced multiple failures to feed, with the rounds nosediving into the feed ramp. Frustration mounted, confirming my initial fears about aftermarket magazines. However, after about 50 rounds, the magazine seemed to “break-in” somewhat, with the frequency of malfunctions decreasing.
The ProMag proved finicky, demonstrating a clear preference for high-velocity ammunition. Standard velocity rounds continued to cause occasional hiccups, especially when the magazine was fully loaded. This preference might be due to the weaker recoil impulse of standard velocity rounds not fully cycling the action with the ProMag magazine.
Extended Use & Reliability
After several range sessions and hundreds of rounds fired, the ProMag magazine has proven to be…tolerable, but not outstanding. Its reliability remains inconsistent, with occasional failures to feed still occurring, especially towards the end of the magazine.
Signs of wear are minimal so far, with the polymer body showing no cracks or significant scratches. The magazine spring, however, seems to have weakened slightly, contributing to the feeding issues.
Maintenance is straightforward, with the magazine easily disassembled for cleaning. I’ve found that keeping the magazine clean and lightly lubricated helps to minimize feeding issues, but it doesn’t eliminate them entirely. Compared to factory Kimber magazines (when I can find them), the ProMag is noticeably less reliable and requires more frequent cleaning to maintain acceptable performance. It disappoints in comparison.
Breaking Down the Features of ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine
Specifications
The ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine boasts a body constructed from DuPont Zytel based polymer. The magazine is designed to hold .22 Long Rifle rounds and has a capacity of 14 rounds.
It is compatible with 1911 platform pistols, specifically those using Kimber, Marvel, or Iver Johnson .22 LR conversion kits. The follower is injection molded, and the magazine spring is formed from heat-treated chrome silicon wire, contributing to its overall functionality. These specifications theoretically allow 1911 owners with .22LR conversion kits to have more rounds available for shooting.
The magazine’s polymer construction contributes to its lightweight design, but it also raises concerns about long-term durability compared to steel magazines. The 14-round capacity is a definite plus, offering more shooting time between reloads, but this is useless if the mag doesn’t feed reliably. The compatibility with multiple conversion kits is a welcome feature, offering versatility for 1911 owners with different setups.
Performance & Functionality
The ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine performs adequately when it comes to capacity, but its reliability is questionable. While it functions, it’s not without hiccups.
Its primary weakness is its inconsistent feeding, with failures to feed occurring periodically, especially with standard velocity ammunition. The magazine’s performance barely meets expectations and requires extra diligence to avoid failures.
Its one strength is that it can hold and feed 14 rounds…eventually.
Design & Ergonomics
The ProMag magazine’s design is simple and functional, but its ergonomics are unremarkable. The polymer construction makes it lightweight, but it lacks the solid feel of a steel magazine.
The magazine loads easily enough, but the polymer feed lips don’t inspire confidence. There is a learning curve to get the mag to run smoothly but not due to user interaction but because of the gun/ammo.
Durability & Maintenance
The magazine’s polymer construction raises questions about its long-term durability. While it has held up reasonably well so far, I suspect that the polymer feed lips may be prone to wear or damage over time.
Maintenance is easy, requiring only occasional cleaning and lubrication. However, the magazine’s reliability issues suggest that it may require more frequent maintenance than a higher-quality magazine.
Accessories and Customization Options
The ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine does not come with any accessories. There are no customization options available for this magazine. It is designed to be a direct replacement for factory magazines in compatible 1911 conversion kits.
Pros and Cons of ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine
Pros
- Higher capacity (14 rounds) compared to some factory magazines.
- Compatible with multiple 1911 conversion kits (Kimber, Marvel, Iver Johnson).
- Relatively inexpensive compared to factory magazines.
- Lightweight polymer construction.
- Easy to disassemble and clean.
Cons
- Inconsistent feeding and reliability issues, especially with standard velocity ammunition.
- Polymer construction feels less durable than steel magazines.
- Magazine spring may weaken over time.
Who Should Buy ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine?
The ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine is perfect for budget-conscious shooters who prioritize capacity and are willing to accept some reliability issues. It is suitable for casual plinking or practice at the range, but not recommended for serious competition or self-defense purposes.
Those who demand consistent reliability and are willing to pay a premium for it should skip this product. Must-have accessories or modifications: None, but a thorough cleaning and lubrication before use are highly recommended.
Conclusion on ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine
The ProMag 1911 .22 LR Kimber / Marvel / Iver Johnson Conversion 14-Round Pistol Magazine offers an affordable way to increase the capacity of your 1911 .22 LR conversion kit. However, its inconsistent reliability is a significant drawback.
The price is justified if you understand the limitations and are prepared to deal with occasional malfunctions. Personally, I would recommend it with reservations, primarily for casual use and only if factory magazines are unavailable or prohibitively expensive.
If you’re on a tight budget and willing to gamble, give it a shot, but be prepared for potential frustration.