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).
- Part Type: Magazine Extension
- Compatible Firearms: Glock 19, Glock 23 (Gen 1-5)
- Capacity Increase: +5 rounds
- Material: Billet Aluminum
- Finish: Flat Dark Earth Anodized
- Installation: Drop-In (requires magazine disassembly)
- Includes: Extension baseplate (magazine spring and follower not included)
