ProMag GLKA11 Glock 23/27 Magazine 13rd 40 S&W Black Polymer

The ProMag GLKA11 delivers reliable feeding and consistent performance for Glock 23 and 27 pistols chambered in 40 S&W. This 13-round magazine extends capacity beyond factory standard while maintaining the compact profile essential for concealed carry applications.

What Makes This Different

Constructed from DuPont Zytel polymer, this magazine offers superior impact resistance compared to standard polymer alternatives. The reinforced feed lips maintain proper cartridge alignment under stress, while the heat-treated spring provides consistent tension through thousands of loading cycles. Factory-style dimensions ensure seamless insertion and positive lock-up in compatible firearms.

Key Features

• 13-round capacity increases firepower over standard 10-round magazines
• DuPont Zytel polymer construction resists cracking and environmental stress
• Heat-treated spring maintains consistent feeding pressure
• Reinforced feed lips prevent deformation during tactical reloads
• Drop-free design enables rapid magazine changes
• Witness holes allow quick round count verification
• Compatible with Glock 23 and 27 pistols in 40 S&W

Field testing demonstrates reliable cycling across various 40 S&W loads, from 155-grain to 180-grain projectiles. The magazine functions consistently in both duty and competition environments, maintaining feed reliability through extended shooting sessions. Temperature extremes from -20°F to 140°F show minimal impact on spring tension or polymer flexibility.

Technical Specs

• Capacity: 13 rounds
• Caliber: 40 S&W
• Material: DuPont Zytel polymer body with steel spring
• Compatibility: Glock 23, Glock 27
• Finish: Matte black polymer
• Overall length: Approximately 4.5 inches
• Weight: 2.1 ounces empty
• Country of origin: USA

This magazine addresses the capacity limitations of factory options while preserving reliability standards demanded by professional users. The proven DuPont polymer construction and precision manufacturing deliver consistent performance when backup firepower matters most.