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

This Shield Arms magazine extension adds 5 rounds to factory Glock 19 magazines or 4 rounds to Glock 23 magazines, increasing capacity to 20 rounds (9mm) or 17 rounds (.40 S&W) without compromising reliability. Designed for shooters who want extended capacity for competition, range training, or duty use, the extension replaces the factory magazine baseplate and uses the original magazine spring and follower.

Machined from aluminum with a gold anodized finish for corrosion resistance and distinctive appearance. Installation requires disassembly of the magazine and removal of the factory baseplate—straightforward for anyone familiar with Glock magazine maintenance. The extension maintains a flush profile with compact Glock grip frames and provides a stable grip surface.

• Part Type: Magazine Extension
• Compatible Firearms: Glock 19 (9mm), Glock 23 (.40 S&W)
• Capacity Increase: +5 rounds (G19), +4 rounds (G23)
• Material: Aluminum
• Finish: Gold Anodized
• Installation: Drop-In (requires magazine disassembly)
• Includes: Magazine extension baseplate