The Shield Arms Magazine Extension +5/4 in grey is a premium accessory designed to enhance the capacity and functionality of your Glock 19 or 23. This extension adds 5 rounds to Glock 19 magazines and 4 rounds to Glock 23 magazines, significantly increasing your firepower without compromising reliability. Constructed from billet 6061 aluminum, it offers exceptional durability and is finished with a Type 2 anodized coating for corrosion resistance. The unique easy-access floor plate design allows for quick maintenance without removing the extension, while index cuts improve grip during reloads. Compatible with OEM Glock magazines and most aftermarket flared mag wells, this extension is perfect for competitive shooting, self-defense, or range use.

Features and Specifications:

• Adds 5 rounds to Glock 19 (9mm) magazines

• Adds 4 rounds to Glock 23 (.40 S&W) magazines

• Machined from billet 6061 aluminum

• Type 2 anodized grey finish for durability and corrosion resistance

• Unique easy-access floor plate design for quick maintenance

• Index cuts for improved grip during reloads

• Includes a +10% power spring for reliable feeding

• Compatible with OEM Glock magazines and most flared mag wells

• Made in the USA