Backup Tactical Magazine Extension for Glock 19/23 +5 – Blue

The Backup Tactical Magazine Extension adds 5 rounds to factory Glock 19 and Glock 23 magazines, increasing capacity from 15 to 20 rounds (9mm) or 13 to 18 rounds (.40 S&W). Designed for shooters who want extended capacity without a full-length competition magazine, this extension maintains a manageable grip length while providing meaningful additional ammunition on tap. Suitable for range use, competition, or home defense applications where capacity matters.

Machined from lightweight aluminum with a blue anodized finish, this extension installs with basic tools and requires the factory magazine spring and follower (no additional spring included). Installation involves disassembling the magazine, sliding the extension onto the magazine tube, and reassembling with the existing components. Some fitting or spring tension adjustment may be required for reliable feeding. A gunsmith or experienced user should handle installation if unfamiliar with magazine assembly.

• Part Type: Magazine Extension
• Compatible Firearms: Glock 19, Glock 23
• Capacity Increase: +5 rounds
• Material: Aluminum
• Finish: Blue Anodized
• Installation: User Install with Basic Tools (magazine disassembly required)
• Includes: Extension body only (uses factory spring and follower)