Magpul PMAG 21 GL9 Glock 9mm 21rd Magazine

The PMAG 21 GL9 holds 21 rounds of 9mm in Magpul's all polymer Glock magazine. It meets the overall length requirement for a 140mm competition magazine, giving extra rounds without an add on extension.

It works in full size, compact and subcompact double stack 9mm Glocks, with some of the body protruding below the grip. The follower is high visibility and controlled tilt, the spring is stainless steel, indicator windows on both sides show a full 21 round load, and the floorplate has ridged edges and comes off easily for cleaning. A paint pen dot matrix is there for marking.