Strike Industries Mag Plate for Glock 17/22 - Black

The Strike Industries Mag Plate for Glock 17/22 is an aluminum extended magazine plate designed to boost capacity on your duty or competition pistol. Built from machined 6061-T6 aluminum, this EMP (Extended Magazine Plate) slides onto factory Glock double-stack magazines to add five extra rounds of 9mm or four rounds of .40 cal—a meaningful bump for shooters running USPSA competition or who simply want more rounds on tap. The low-drag, no-snag geometry keeps reloads smooth and fast, and the included aluminum locking plate locks the extension securely in place.

Strike Industries engineered this plate with a unified, aggressive aesthetic that complements modern Glock builds. It's built tight to the magazine body to ensure reliability, which means installation requires care—the company recommends using a light c-clamp during assembly to avoid stressing the polymer magazine base and suggests consulting a certified gunsmith if you're unsure. The black anodized finish is durable, though minor color variation between batches is normal due to the anodization process.

This mag plate is compatible with factory Glock G17, G17L, G19X, G22, G24, G34, G35, and G45 double-stack magazines, and it fits within USPSA 140mm race division limits. Note that it won't work with 10-round magazines or ETS brand mags. Installation hardware and a 2mm hex tool are included. Be aware of your state and local magazine capacity laws before purchase—this product is not available to residents of California, Hawaii, New York, or New Jersey.

Key Features

• Machined 6061-T6 aluminum construction for durability and clean aesthetics
• Adds 5 rounds capacity for 9mm or 4 rounds for .40 cal
• Low-drag, no-snag design for smooth, reliable reloads
• Aluminum locking plate included for secure attachment
• USPSA 140mm race division compliant
• Compatible with Strike Industries magwell systems
• Includes all hardware and installation tools

Specifications

Frequently Asked Questions

Will this mag plate fit my Glock factory magazines?

Yes, it's compatible with factory Glock G17, G17L, G19X, G22, G24, G34, G35, and G45 double-stack magazines. It will not work with 10-round magazines or ETS brand magazines.

How much capacity does it add?

The plate adds 5 rounds to 9mm magazines or 4 rounds to .40 cal magazines when installed on compatible Glock OEM double-stack mags.

What's included in the box?

The package includes the aluminum extended magazine plate, an extended-length spring, an aluminum locking plate, a M3x8mm set screw, and a 2mm hex tool for installation.

Is installation difficult, and do I need a gunsmith?

Strike Industries recommends certified gunsmith installation due to the tight fit of the plate on the magazine body, which could damage polymer if not installed carefully. If you attempt installation yourself, use a light c-clamp to gently squeeze the magazine body just above the locking ears during assembly, and do not overtighten the set screw.