Backup Tactical Magazine Extension for Glock 19/23 +5 Black

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). This extension provides a substantial capacity increase for competitive shooting, home defense, or duty use without requiring a larger frame pistol. The added length also improves grip purchase for shooters with larger hands.

Machined from billet aluminum with a hard-anodized black finish, this extension includes a reinforced spring and follower assembly designed to maintain reliable feeding under the increased spring tension. Installation requires disassembly of the factory magazine base plate and replacement with the extension components—basic tools and attention to detail are needed, but no professional gunsmithing is required. Verify local magazine capacity laws before purchase.

• 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