Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip Review

Deep Dive into the Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip

As an individual with over a decade of hands-on experience across diverse environments—from the rugged outdoors to the meticulous workshop, the sterile lab, and the dynamic field—I’ve developed a keen eye for gear that truly performs. When my Kahr Arms CM40 started experiencing inconsistent feeding, I knew it was time for a replacement magazine, specifically one that offered a bit more in terms of handling and capacity. The Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip presented itself as a promising solution, aiming to rectify my firearm’s hiccup while potentially improving my grip. My initial impression upon unboxing this unit was positive; the stainless steel construction felt robust and the integrated grip extension appeared thoughtfully designed for better control. While I briefly considered generic aftermarket options, the potential for fitment issues and unproven reliability steered me back towards a manufacturer-specified part. The relief of having a solution in hand was palpable, sparking a practical curiosity to see if it would live up to its promise.

Real-World Testing: Putting Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip to the Test

First Use Experience

My testing primarily took place at my local indoor shooting range, where I could control variables and focus on the magazine’s function. I performed drills focused on reloads, target transitions, and extended firing sessions to simulate various tactical and defensive scenarios. The magazine performed admirably under repeated use, feeding rounds smoothly without any of the hesitation my previous magazine exhibited. Its integration into the firearm was seamless, and the extended grip provided a noticeable improvement in my ability to get a full, firm purchase on the pistol’s grip, especially during rapid firing. I encountered no issues or surprises during this initial phase, only a welcome return to reliable firearm operation.

Extended Use & Reliability

Over several weeks of regular range visits and a couple of extended training days, this Kahr magazine has become my go-to for my CM40. It has endured being dropped from a magazine release height onto concrete (an accidental but telling test) with only superficial scuffing, and more importantly, no loss of structural integrity or feeding reliability. Cleaning and maintenance have been straightforward; a quick wipe-down and occasional application of a light lubricant on the follower and spring are all that’s needed to keep it in top condition. Compared to the OEM magazine it replaced, this unit has shown superior consistency, and in comparison to some less expensive aftermarket alternatives I’ve used in other firearms, its build quality and unwavering performance are clear differentiators.

Breaking Down the Features of Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip

Specifications

The Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip, identified by Kahr Arms as the KS620, is specifically designed for Kahr’s .40 S&W pistols, including the PM40, MK40, and CM40 models. It boasts a 6-round capacity, which is standard for this class of compact firearm but provides a critical buffer of ammunition. Constructed from durable Stainless Steel, this magazine is built to withstand the rigors of consistent use and resist corrosion, ensuring longevity and reliable function. The defining feature, however, is the extended grip portion. This extension seamlessly integrates with the pistol’s frame, effectively adding a bit more surface area for your hand. This enhancement is crucial for shooters who find the standard compact grip a bit too short, allowing for a more secure and comfortable hold, which in turn aids in recoil management and quicker follow-up shots.

Performance & Functionality

In terms of its primary function – feeding ammunition reliably – this Kahr magazine excels. It consistently delivered rounds into the chamber of my CM40 without any jams, stovepipes, or misfeeds, even when loaded to its full capacity. The stainless steel construction contributes to its smooth operation, as does the well-designed follower and spring assembly. The 6-round capacity is adequate for its intended purpose, though those seeking higher capacity might look at extended magazines from other manufacturers, if available. Its performance meets, and in terms of feeding consistency, exceeds my expectations for a factory replacement part.

Design & Ergonomics

The design of this magazine is a blend of practical utility and enhanced ergonomics. The stainless steel build gives it a substantial feel, reassuring you of its durability. The key design element is the extended grip, which is subtly contoured to blend with the pistol’s grip frame. This extension provides an extra bit of real estate, allowing shooters with larger hands, or those who simply prefer a fuller grip, to achieve a more stable and comfortable hold. This is a significant ergonomic improvement over flush-fitting magazines for many users. The finish is smooth, and the magazine slides cleanly into the magazine well, making reloads efficient.

Durability & Maintenance

This magazine feels built to last. The stainless steel construction is inherently robust, and the design appears free of any obvious weak points that might fail under stress. After my accidental drop test, it held up admirably, showing only minor cosmetic damage. Maintenance is simple; periodic cleaning of the follower and spring, along with ensuring the exterior is clean and dry, is sufficient to keep it in optimal working order. Given its solid construction, I anticipate this magazine will serve reliably for a very long time, far exceeding the lifespan of many disposable or less robust options.

Accessories and Customization Options

The Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip comes as a standalone unit. Its primary “accessory” is the integrated extended grip. There are no user-replaceable parts like interchangeable base pads or additional capacity extensions offered for this specific model from Kahr Arms. Its design is focused on providing a slightly larger grip surface and reliable feeding for the specific Kahr pistol models it supports. While Kahr Arms does offer other accessories for their firearms, this magazine itself is not designed for further customization beyond its core function.

Pros and Cons of Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip

Who Should Buy Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip?

This Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip is an excellent choice for owners of Kahr Arms CM40, MK40, or PM40 pistols who are experiencing feeding issues with their current magazines, or who simply desire a more substantial grip for improved handling. It is particularly well-suited for those who engage in regular range practice and value reliability above all else. Shooters with larger hands who find the standard grip on these compact pistols slightly restrictive will greatly benefit from the extended grip feature.

Conversely, individuals looking for extended capacity magazines that offer more than 6 rounds might need to explore other manufacturers or models, if available. Those seeking highly customizable magazines with interchangeable base pads or capacity boosters will also find this particular offering limited. For its intended purpose as a reliable, well-handling replacement or supplementary magazine for specific Kahr .40 S&W pistols, however, it is an outstanding option.

Conclusion on Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip

The Kahr Magazine CM/MK/PM 40SW 6 Round, w/Extended Grip is a testament to Kahr Arms’ commitment to producing reliable firearm components. Its stainless steel construction speaks to its durability, and the extended grip offers a tangible ergonomic advantage that enhances control and shooting comfort. For anyone owning a compatible Kahr .40 S&W pistol and seeking a dependable magazine that functions flawlessly, this unit is a superb investment. The price of $41.99 is justified by its build quality, perfect fitment, and the critical improvement in handling it provides. I wholeheartedly recommend this magazine to Kahr owners who value performance and a secure grip; it’s a simple upgrade that makes a significant difference in the shooting experience.