The Backup Tactical Magazine Extension adds five 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
- Capacity Increase: +5 rounds
- Material: Billet Aluminum
- Finish: Hard-Anodized Black
- Installation: User-Installable (Magazine Disassembly Required)
- Includes: Extension Body, Reinforced Spring, Follower
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