Pearce Grip PGMK9 Polymer Grip Extension with Black Finish for Kahr 9mm Luger MK, K & 40 S&W Covert - 5/8" Gripping Surface

If you've ever felt like a compact Kahr 9mm or .40 S&W was just a hair too small for a full-grip purchase, the Pearce Grip PGMK9 Polymer Grip Extension is a straightforward fix. This grip extension adds a 5/8" shelf at the base of your magazine well, letting your pinky finger and lower hand find a solid purchase on the frame instead of dangling underneath. The result: better control over recoil, more consistent sight picture, and a gun that feels less like a handful and more like an actual firearm you can shoot well.

The PGMK9 is engineered for Kahr's MK and K series 9mm Luger and their Covert models in .40 S&W—pistols built compact for concealed carry but sometimes sacrificing ergonomics in the process. By replacing the factory magazine base pad with this polymer extension, you reclaim the grip real estate you need without adding weight, bulk, or magazine capacity. The black finish matches standard Kahr aesthetics and holds up to normal carry and use.

Installation is simple: swap out your magazine's base pad. The grip extension itself is durable reinforced polymer, designed to handle repeated handling and shooting. This is the kind of upgrade that pays dividends at the range and in the field—small-framed pistols shoot better when you can actually hold them properly, and this solves that problem without the cost or complexity of a full firearm swap.

Key Features

• 5/8" extended shelf indexes your pinky and lower palm for full-hand control
• Polymer construction resists wear and degradation
• Black finish matches standard Kahr finishes
• Drop-in replacement for factory magazine base pad—no gunsmithing required
• Does not increase magazine capacity or firearm weight
• Compatible with Kahr 9mm MK, K, and .40 S&W Covert series

Specifications

Frequently Asked Questions

Will this grip extension work with my Kahr 9mm or .40 S&W?

The PGMK9 is designed for Kahr 9mm Luger MK and K series pistols, as well as .40 S&W Covert models. If you own one of those frames, this extension will fit. For other Kahr models, check compatibility with the manufacturer or retailer first.

Does this add weight or increase my magazine capacity?

No. The grip extension is a polymer shelf that replaces your factory magazine base pad. It adds no weight and does not increase how many rounds your magazine holds—it only extends your grip surface for better control.

How do I install the Pearce Grip extension?

Simply remove the factory base pad from your magazine and install the PGMK9 in its place. No tools, gunsmithing, or modifications to the firearm are required. It's a direct swap.

Will this help with recoil control on my compact Kahr?

By giving your pinky and lower hand a solid purchase on the frame instead of leaving it floating, this extension should improve your overall grip consistency and control during shooting. Better grip control typically translates to more predictable recoil management and sight picture recovery.