MAGPUL PMAG GL9 9MM 21RD EXTENDED GLOCK MAGAZINE

Overview

The Magpul PMAG GL9 21-round magazine is a competition-length, extended-capacity magazine built for Glock 9mm pistols. Featuring Magpul’s proven all-polymer construction, stainless steel spring, and anti-tilt follower, it delivers exceptional durability, flawless feeding, and ease of maintenance. Designed to meet the 140mm competition standard, this magazine offers increased capacity without the need for costly extensions—making it ideal for both competitive shooting and defensive applications.

Key Features

• Extended 21-round capacity for 9mm Glock pistols

• Compatible with full-size, compact, and sub-compact double-stack Glock 9mm handguns (some grip protrusion on smaller models)

• Rugged, lightweight polymer body with reinforced construction

• High-visibility, controlled-tilt follower for reliable feeding

• Long-life stainless steel spring for durability and corrosion resistance

• Flared, removable floorplate for easier handling and maintenance

• Full magazine indicator windows on both sides for quick round counts

• Paint pen dot matrix for custom magazine identification

• Drops free when loaded or unloaded

Specifications

• Caliber: 9mm Luger

• Capacity: 21 Rounds

• Material: Reinforced Polymer

• Finish: Matte Black

• Weight: 0.106 lbs (approx. 1.7 oz)

• Compatibility: Glock 17, 19, 26, 34, 45, and other double-stack 9mm variants

• Country of Origin: USA

MPN: MAG661-BLK
UPC: 840815109709

Applications

Perfect for competition shooting, tactical training, and home defense. The extended 21-round capacity ensures extra firepower without compromising reliability.

Additional Features

• Meets 140mm competition magazine requirements

• Ridged floorplate edges for better grip during reloads

• Designed for long-term durability and reliable performance across thousands of rounds