Magpul PMAG 21 GL9 9mm Glock Magazine, 21-Rd

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

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