This is the Taran Tactical CZ 9mm 17/18-round Mec-Gar magazine +4 extension.

If you’ve been wanting to maximize your CZ’s capacity, this high-quality magazine extension is exactly what you need!

CNC-machined from billet aluminum, this extension provides enhanced durability, plus the added weight helps speed up your reloads. Featuring a unique push-pin design, it quickly and easily adds 4 rounds of 9mm to your 17 and 18-round Mec-Gar magazines without tearing them up.

Last but certainly not least, it’s made right here in the United States! 

Increase your firepower and pick up a few today!