SHIELD ARMS Magazine Extension +5/+4 for Glock 17/22/34/35/19X/45

The Shield Arms Magazine Extension is a drop-in floorplate extension designed for compatible Glock magazines. It increases capacity—adding five rounds to Glock 17/19X/34/45 magazines and four rounds to Glock 22/35 magazines—while allowing access to the spring and follower without removing the extension. The extension is machined from billet 6061 aluminum and finished in red Type II anodize for corrosion resistance. Its design emphasizes serviceability and improved handling during reloads.

Key Specifications

• The model is Magazine Extension.
• Adds 5 rounds to Glock 17/19X/34/45 magazines.
• Adds 4 rounds to Glock 22/35 magazines.
• Machined from billet 6061 aluminum.
• Finish is Type II anodized red.
• Includes a +10% power spring.
• Fits OEM Glock magazines only.
• Weight listed as 0.15 by the manufacturer.
• Warranty is 100% lifetime warranty.
• Features an easy-access floor plate for service without removing the extension.

Durable construction and a low-profile fit make this extension a practical option for range use, competition, or duty applications where additional capacity and reliable serviceability matter. The combination of billet construction, indexed grip cuts, and the included power spring delivers consistent performance while preserving magazine service access.