A brand new Shield Arms S15 Gen 2 PowerCron 15 round 9mm magazine with an anodized Shield Arms +5 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.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 5 rounds to Shield Arms S15 Gen 2 PowerCron magazine Comes with a 12 coil plus power spring Proudly made in the USA Fits most aftermarket flared mag wells Lifetime warranty