The Shield Arms S15 Magazine Extension adds 2 rounds to your S15 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.

Don't want to do the installation? Check out our S15 Pre-Installed Mag Extensions here. 

Features

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

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