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Glock-pattern 9mm magazines compared

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Capacity, fit and weight for 9mm magazines made for Glock handguns, from manufacturer spec pages.

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Magpul Industries Magpul PMAG 12 GL9 GLOCK G26GLOCK 26 [src]12 rounds [src]Polymer [src]1.5 oz [src]$13.95 at OpticsPlanet (as of Oct 9, 2026)1
Magpul Industries Magpul PMAG 15 GL9 GLOCK G19Standard GLOCK 19 and sub-compact variants with some protrusion below the grip (not the GLOCK 19X) [src]15 rounds [src]Polymer [src]1.9 oz [src]$13.95 at OpticsPlanet (as of Oct 9, 2026)1
Magpul Industries Magpul PMAG 17 GL9 GLOCK 17Most full-size 9mm GLOCK handguns, plus compact and sub-compact variants with some protrusion below the grip [src]17 rounds [src]Polymer [src]1.7 oz [src]$13.95 at OpticsPlanet (as of Oct 9, 2026)1
Magpul Industries Magpul PMAG 21 GL9 GLOCKFull-size, compact and sub-compact double-stack 9mm GLOCK variants with some protrusion below the grip [src]21 rounds [src]Polymer [src]1.7 oz [src]$18.75 at OpticsPlanet (as of Oct 9, 2026)1
Magpul Industries Magpul PMAG 27 GL9 GLOCKFull-size, compact and sub-compact double-stack 9mm GLOCK variants with some protrusion below the grip [src]27 rounds [src]Polymer [src]2 oz [src]$18.75 at OpticsPlanet (as of Oct 9, 2026)1

Method

Specs come from manufacturer spec pages and link to their source. Prices are the lowest current price across merchants matched by UPC or MPN, checked within 48 hours. OpticsPlanet prices come from its Awin product feed and show the feed date; that feed does not state stock. Ranking formulas.