Shield Arms +3 Mag Extension for the Z9 magazine.  

The Shield Arms Magazine Extension adds 3 rounds to your Z9 magazine. Our unique, easy access floor plate design allows you to quickly access the spring and follower without having to remove the extension from the magazine body. Comes with a 100% lifetime warranty, and the Shield Arms Spring for Life guarantee. 

Magazine Extension Features:

• Unique easy access floor plate design to service or clean the magazine body without the need to remove the magazine extension from the magazine body.
• Index cuts on the extension body to increase grip when coming out of a magazine pouch.
• Machined from billet 6061 aluminum
• Type 2 anodized finish
• Adds 3 rounds to Shield Arms Z9 PowerCron magazine for a total of 12 rounds (DOUBLE standard OEM capacity!)
• Comes with a 14 coil plus power spring
• Lifetime warranty
• Not compatible with the Z8 pistol magazine. 

All Shield Arms magazines and extensions are PROUDLY Made in the USA!

Please check your state and local laws regarding magazine capacity restrictions.