Description
Strike Industries built this extended mag plate to solve a real problem: getting a better grip on your magazine during reloads while adding usable capacity to OEM Glock double-stack mags. The aluminum construction matches the quality you'd expect from a company that actually understands what competitive shooters and serious trainees need.
How the aluminum mag plate improves your reload
When you're running magazines hard, you need something to grab. The extended platform gives your fingers more to work with, which means faster, more confident mag changes. That's the core reason this plate exists, and Strike nailed the execution. The aluminum body is lightweight but substantial, and the anodized finish holds up to abuse without looking worn out after a few months of regular use.
Compatibility with your Glock magazines
This plate works with factory OEM G17 and G22 double-stack magazines. The fit is tight without being fussy, and the included aluminum locking plate uses a secure hook design that keeps everything locked down when fully loaded. You'll also get an extended-length spring and a hex tool for installation. The slow-drag, no-snag geometry means it won't catch on your magwell or holster during reloads, which matters more than it might sound when you're training or competing.
Built for USPSA competition
Strike engineered this plate to fit within USPSA 140mm race division limits, so if you're running it in matches or training for them, you're compliant out of the box. The geometric design isn't just functional either. The red anodized finish and sharp lines give your magazines an intentional look that fits with Strike's overall aesthetic.
Key Specifications
- Material: 6061-T6 Aluminum
- Color: Red Anodized
- Capacity Increase (G17/9mm): +5 rounds
- Capacity Increase (G22/.40 cal): +4 rounds
- Compatibility: Glock G17, G17L, G19X, G22, G24, G34, G35, G45 OEM double-stack magazines
- Includes: Extended-length spring, aluminum locking plate, set screw, hex tool
- Design Feature: Low drag/no snag profile
- Competition Ready: Fits USPSA 140mm race division limit
- Length: 50.24mm
- Width: 27.83mm
- Height: 35.14mm
- Weight: 1.0 oz
- Manufacturer: Strike Industries
- MPN: SI-EMP-AL-G17-RED
- UPC: 793811765724
What’s Included
- 1x Aluminum Extended Magazine Plate
- 1x Extended-length spring
- 1x Aluminum locking plate
- 1x Aluminum locking plate set screw (M3x8mm)
- 1x 2mm hex tool
- 1x Warning card
Frequently Asked Questions
Will this aluminum mag plate work with my existing Glock magazines?
Yes. This plate fits OEM Glock double-stack magazines for the G17 (9mm), G17L, G19X, G22 (.40 cal), G24, G34, G35, and G45. Just note that 10-round magazines and ETS brand magazines aren't compatible. The fit is snug but straightforward to install if you follow the included instructions.
How many extra rounds will I actually get?
The aluminum plate adds 5 rounds to 9mm G17 magazines and 4 rounds to .40 cal G22 magazines. Real-world results show G17 users typically get all 5 extra rounds loaded without issues, though the spring does need a brief break-in period. Some users find the 6th round mentioned elsewhere requires more force than practical for daily use.
Is installation difficult?
Installation is straightforward. You'll remove the factory base plate from your magazine, swap in the extended spring and aluminum plate, then secure it with the included set screw. The included hex tool makes it simple. The hardest part for most people is removing the original factory base plate, which can be tight. Once you've done one, the rest go quickly.
Does this fit in a magwell or cause any issues during reloads?
The slow-drag, no-snag design means it seats cleanly without catching on magwells or holster lips during reloads. If you're running a tight magwell, you might need to test fit first, but the aluminum construction and smooth profile work well with most modern Glock setups. The aluminum locking plate ensures your magazine stays secure even when fully loaded and being handled hard.





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