For those who want a variety in their Polymer magazines, CAA have this Indicative Magazine which retails at €16.50, which means it's even better value than a lot magazines, including some airsoft magazines. This is a real steel magazine and the "indicator" here is the white polymer indicator that you can look or feel how many rounds your magazine has left. Just like the PMAG it has a window which is positioned further the front rather than rear.

We wonder if this magazine is also for release with the CAA Airsoft Division as they have released their magazine line-up. It would be nice to have that white indicator to feel how many rounds you have left when playing airsoft.