It should be compatible.
There is another model specifically made for the Glock 26, the EMP G26.
The Strike Industries Extended Magazine Plate for Glock 17/Glock 22 is tested and confirmed to work with the Strike Industries magwell, Magpul, and JP Enterprises.
Per the manufacturer: For GLOCKâ„¢ factory OEM G17/G17L/G19X/G22/G24/G34/G35/G45 double stack magazines
No, Strike Industries does not confirm fitment with the Magpul PMAG 17. This will work with OEM Glock magazines and ETS Magazines that are over 10 rounds.
Yes, it comes with the spring and locking plate.
No, Strike Industries does not confirm fitment with the Magpul PMAG 17. This will work with OEM Glock magazines and ETS Magazines that are over 10 rounds.
No, this is not compatible with the Glock 23.
This is compatible with GLOCK factory OEM G17/G17L/G19X/G22/G24/G34/G35/G45 double stack magazines and ETS Magazines that are over 10 rounds.
No, Strike Industries does not confirm fitment with the Magpul PMAG 17. This will work with OEM Glock magazines and ETS Magazines that are over 10 rounds.