Kel-Tec S2K221 Sub2000 Mag Sleeve Glock 17 Gen3 Black Polymer

The Kel-Tec S2K221 Sub2000 mag sleeve for Glock 17 Gen3 magazines is a simple but effective accessory for carbine shooters who want a more comfortable, controlled grip on their Kel-Tec Sub2000. If you've run your Sub2000 with a standard Glock 17 mag, you know there's a gap between the magazine and the grip—this sleeve fills it. The result is a longer, more natural hand position that reduces fatigue and improves control during extended range sessions or field use.

Made from durable polymer, the sleeve slides directly over your Glock 17 Gen3 magazine and sits flush in the Sub2000's magwell. It's compatible with both standard and extended "stick" magazines, so you can choose your capacity without sacrificing ergonomics. Whether you're running a Sub2000 for tactical training, hunting, or sport shooting, a proper grip is foundational—this sleeve addresses one of the most common ergonomic complaints about the platform without adding bulk or complexity.

Installation is straightforward: slide the sleeve over your magazine before loading. No tools, no permanent modifications. It's the kind of refinement that separates a well-tuned carbine from stock setup, and it costs far less than other ergonomic upgrades.

Key Features

• Fills the grip gap between Glock 17 Gen3 magazine and Sub2000 receiver for extended hand placement
• Constructed from high-quality polymer for durability and reliable performance
• Compatible with standard and extended Glock 17 "stick" magazines
• Simple slide-on design—no tools or modifications required
• Improves control, comfort, and stability during shooting

Specifications

Frequently Asked Questions

Will this mag sleeve work with my Sub2000 and Glock 17 magazines?

Yes—the S2K221 is designed specifically for Kel-Tec Sub2000 carbines chambered in .40 S&W (GLK Gen3 variant) and Glock 17 Gen3 magazines. It slides over the magazine to eliminate the grip gap and extend your hand placement on the carbine.

Can I use this sleeve with extended magazines?

Yes. The sleeve is compatible with both standard and extended "stick" Glock 17 magazines, so you can run whatever capacity you prefer while maintaining improved ergonomics.

Does the sleeve come with a magazine?

No. This is the mag sleeve only—the magazine is sold separately. You'll need a Glock 17 Gen3 magazine to use it.

Is any installation or modification required?

No. The sleeve simply slides over your magazine. No tools, no permanent changes to your carbine or magazine—just slip it on and go.