This is the Taran Tactical® Firepower® magazine extension for the Glock 21. This adds 4 rounds to your factory magazine. 

This extension is manufactured from Taran Tactical’s premium adonized aluminum, bringing G21 owners enhanced durability and capacity. Its extremely easy to detach with a one-piece design. Don’t worry, there’s no extra parts to misplace. Please note you will need a Glock magazine tool or similar tool to remove the factory base plate.

With the Glock 21 holding 13 rounds, this extension brings the total capacity to 17+1 – a substantial increase.

Double down on firepower and pick up a few today!

Compatible:

• Glock 21 13 round factory magazine (Gen 3 – 5)

Not Compatible:

• 10 round or “blocked” Glock 21 magazines
• Other Glock pistol magazines
• Aftermarket Glock 21 magazines

Contents Include:

• TTI +4 magazine extension (available in Black, Red)
• Replacement spring – maintains same spring tension

Manufactured in the USA.