The Strike Industries extended magazine plate (manufacturer part number SI-EMP-AL-G17-BK) adds extra rounds of capacity to a compatible Glock 17 (9mm) and Glock 22 (.40 S&W) OEM double-stack magazine. It is not a standalone magazine and does not include a complete magazine body.

Key Specifications

• This is a magazine extension accessory for a compatible factory magazine — it is not a standalone magazine and does not include a complete magazine body.
• Increases the round capacity of a compatible Glock 17 (9mm) and Glock 22 (.40 S&W) OEM double-stack magazine.
• Built for 9mm/.40 S&W-caliber magazines.
• Adds +5 rounds to a compatible 9mm Glock magazine, or +4 rounds to a compatible .40 S&W Glock magazine.
• Machined from 6061-T6 aluminum.
• Uses a slow-drag, no-snag design intended to smooth out reloads.
• Includes an aluminum locking plate for extra retention security.

Frequently Asked Questions

Does this include a complete magazine? No — this is an extension accessory only. It’s designed to increase the capacity of a compatible factory magazine you already own; it does not include a full magazine body.

What does this fit? It’s designed for Glock 17 (9mm) and Glock 22 (.40 S&W) OEM double-stack magazines. Always confirm your magazine’s exact generation and model before ordering, since extension kits are generation-specific.

Buy the Strike Industries Extended Magazine Plate for Glock 17 (9mm) and Glock 22 (.40 S&W) OEM double-stack magazines

Order the Strike Industries Extended Magazine Plate for Glock 17 (9mm) and Glock 22 (.40 S&W) OEM double-stack magazines from Strike Industries, part of our handgun magazines selection, from a Lubbock, TX gun shop. Pick up a genuine capacity upgrade for your compatible magazine.