Shield Arms +5/4 Magazine Extension for Glock 17/22 – OD Anodized

The Shield Arms magazine extension adds 5 rounds to factory Glock 17 magazines or 4 rounds to Glock 22 magazines, increasing capacity without sacrificing reliability. Designed for shooters who want extended capacity for competition, duty, or range use, this extension replaces the factory magazine baseplate while maintaining a secure fit and consistent feeding.

Machined from aluminum with an OD anodized finish for corrosion resistance and durability. Installation is straightforward—remove the factory baseplate, install the extension, and insert the included spring and follower. No gunsmithing required, though some fitting may be necessary depending on magazine tolerances.

• Part Type: Magazine Extension
• Compatible Firearms: Glock 17 (+5 rounds), Glock 22 (+4 rounds)
• Material: Aluminum
• Finish: OD Anodized
• Installation: Drop-In (some fitting may be required)
• Includes: Extension baseplate, spring, follower