Shield Arms +5/+4 Magazine Extension for Glock 19/23

The Shield Arms +5/+4 Magazine Extension provides a simple, user-serviceable way to increase capacity for Glock 19 and Glock 23 magazines. Engineered for compatibility with Glock 19 (Gen 3/4/5) and Glock 23 (Gen 3/4/5) magazine bodies, the extension installs to expand capacity while maintaining reliable spring and follower access. Finished in an anodized Operational Detachment Alpha (ODA) green, it is built for regular use at the range, for duty, or for everyday carry setups that require modest extra capacity.

Key Specifications

• Adds +5 rounds to compatible Glock 19 magazines.
• Adds +4 rounds to compatible Glock 23 magazines.
• Designed to fit Glock 19 and Glock 23 magazines (Gen 3/4/5).
• Finish is anodized for corrosion resistance and wear handling.
• Color is Operational Detachment Alpha (ODA) Green.
• Model designation is +5/+4 Magazine Extension.
• Includes an easy-access floor plate that allows spring and follower removal without detaching the extension.
• Backed by a 100% lifetime warranty from the manufacturer.
• Includes the Shield Arms Spring for Life guarantee.

This extension is a straightforward, durable option for shooters who want increased magazine capacity with easy maintenance. Its anodized finish and low-profile design integrate cleanly with standard Glock magazine bodies, giving a practical balance of added capacity and dependable function for range use, carry, or duty applications.