A Shield Arms Patented S15 Gen 3 Nitrocarb 15 round 9mm magazine with an anodized Shield Arms +2 magazine extension pre-installed. 

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
• Adds 2 rounds to Shield Arms S15 Gen 3 Nitrocarb magazine 
• Comes with a 11 coil plus power spring
• Proudly made in the USA
• Fits most aftermarket flared mag wells
• Lifetime warranty

Mag Catch Requirement:

It is required to swap out your plastic OEM mag catch with a Shield Arms standard or premium steel mag catch. Not changing out the mag catch or using another manufacture's product may result in reliability issues. 

Gen 2&3 magazines were designed to work with Shield Arms steel mag catches. If you have a first generation aluminum mag catch, it is required to upgrade to one of our steel mag catch offerings.

Note: In 2025 Shield Arms' mud anodizing shade slightly changed. Items previously purchased may not be an exact match to the new shade. 

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