The Shield Arms S15 Magazine Extension adds 5 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.
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 5 rounds to the S15 magazine
Comes with an 11 coil plus power spring
Fits Shield Arms S15 magazine only
Proudly made in the USA
Fits most aftermarket flared mag wells