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

The Shield Arms Magazine Extension adds 5 rounds to factory Glock 19 15-round magazines (20 total) or 4 rounds to Glock 23 13-round magazines (17 total). This extension is designed for shooters who want increased capacity without switching to a different magazine platform. It maintains reliable feeding while giving you more rounds on tap for competition, training, or defensive use.

Machined from aluminum with a red anodized finish, this extension replaces the factory baseplate and includes a replacement spring. Installation requires disassembly of the magazine but does not require any permanent modification to the magazine tube. The extension adds length to the grip, providing a fuller grip surface for shooters with larger hands.

• Part Type: Magazine Extension
• Compatible Firearms: Glock 19, Glock 23
• Capacity Increase: +5 rounds (G19), +4 rounds (G23)
• Material: Aluminum
• Finish: Red Anodized
• Installation: User-installable, requires magazine disassembly
• Includes: Extension baseplate, replacement magazine spring