PMAG® 21 GL9® – GLOCK®

Added capacity, no expensive extensions

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$19.95 Regular Price $19.95
$19.95 Regular Price $19.95
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Product Details

The PMAG 21 GL9 is a 21-round GLOCK 9mm handgun magazine featuring our proprietary all-polymer construction for flawless reliability and durability over thousands of rounds. Meeting the overall length requirements for a 140MM competition magazine, the PMAG 21 GL9 offers additional capacity without the need for expensive extensions.

Our GLOCK magazines come with many of our other platform PMAG features, including a high visibility controlled-tilt follower, a stainless steel spring, a floorplate that's easily removable for cleaning, a paint pen dot matrix for magazine marking, ridged floorplate edges for better grip, and capacity indicator windows. The PMAG 21 GL 9 drops free from the firearm whether it's loaded or unloaded. All with the same boring reliability you expect from an OEM magazine.

The PMAG 21 GL9 is compatible with all full-size, compact, and sub-compact double-stack GLOCK 9mm variants with some protrusion below the grip.

Made in the USA.


Brings added capacity and Magpul reliability to any full-size, compact, or sub-compact 9mm double-stack GLOCK handgun


Magazine indicator windows on both sides of the magazine body at 10, 15, and 21 rounds remaining


Designed with a flared, easily removable floor plate for efficient operation


Use the paint pen dot matrix to easily identify your different loads when it's crunch time


Durable, lightweight, and extremely stiff polymer construction



High visibility controlled-tilt follower



Long life stainless steel spring for corrosion resistance


Export Administration Regulations Controlled Product

EXPORT NOTICE: This is an item controlled for export by the Export Administration Regulations (EAR) under the Commerce Control List (CCL). These controls take the form of export regulations and license requirements. As part of the express consideration provided for receipt of Magpul's goods, technical data and/or services, you, our customer, acknowledge that the export, re-export or other transfer, directly or indirectly, of the goods, technical data and/or services provided by Magpul in violation of U.S. law is prohibited. Customers acquiring controlled goods, technical data and/or services from Magpul shall be responsible for obtaining any necessary U.S. or other government authorization required to ensure compliance with applicable export laws. (See Magpul Compliance Notices page for more information).

PLEASE NOTE: Certain U.S. jurisdictions restrict firearm magazines sales. Magpul Industries cannot process sales/shipments prohibited by law. A list of states and municipalities restricting firearm magazine sales is available here.

WARNING: Observe safe firearm handling practices at all times. Failure to do so may result in serious bodily injury or death. Magpul Industries shall not be responsible for injury, death, or property damage resulting from faulty installation, misuse, illegal use, or modification of this product.

Technical Specifications

More Information
Caliber 9x19mm Parabellum
Platform GLOCK
Capacity 21 rounds
Weight 1.7 oz.
Compatibility The PMAG 21 GL9 is compatible with all full-size, compact, and sub-compact double-stack GLOCK 9mm variants with some protrusion below the grip



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