SHIELD ARMS Glock 19/23 +5/+4 Mag Extension Black

The Shield Arms Magazine Extension for Glock 19 and Glock 23 increases usable capacity while maintaining serviceability of the magazine. It adds five rounds to Glock 19 magazines and four rounds to Glock 23 magazines and is machined for repeatable fit. The extension features an easy-access floor plate that allows spring and follower maintenance without removing the extension from the magazine body. Magazine not included.

Key Specifications

• Adds +5 rounds to Glock 19 magazines.
• Adds +4 rounds to Glock 23 magazines.
• Machined from billet 6061 aluminum for consistent fit and durability.
• Finished with a Type 2 anodized black coating.
• Includes a +10% power spring for reliable feeding.
• Features a unique easy access floor plate to service the spring and follower without removing the extension.
• Fits OEM Glock 13- and 15-round magazines only.
• Includes index cuts on the extension body to improve grip when removing from a pouch.
• Compatible with Glock Gen 3/4/5 models 19 and 23.
• Backed by a lifetime warranty and Shield Arms Spring for Life guarantee.

Engineered for range use, competition, and everyday carry configurations that require reliable capacity increases, this Shield Arms extension preserves magazine serviceability while adding rounds. Its machined construction, serviceable design, and warranty make it a practical, durable solution for Glock 19 and 23 owners seeking a straightforward capacity enhancement.