Shield Arms Glock 19/23 Magazine Extension +5/+4 9mm Luger/.40 S&W, Red - G19ME5RED

This Shield Arms magazine extension adds 5 rounds to Glock 19 magazines and 4 rounds to Glock 23 magazines in 9mm Luger and .40 S&W calibers. It features a unique easy access floor plate design for quick serviceability of the spring and follower without removing the extension from the magazine body. The red anodized aluminum construction comes with a 100% lifetime warranty and Shield Arms Spring for Life guarantee.