Matrix "Mil-Sim" 70 round Mid-Cap Magazine for P90 Series Airsoft AEG (Package: One)

"Purchased three of these mags for a close quarters field, running in my Cybergun AEG P90. I've done three long sessions with the magazines since purchase and two of the three have had a critical failure of the system that keeps the bb's pushing through the magazine, and all of them have splintered plastic from general gameplay usage, nothing serious or extreme. I would probably not purchase this brand of magazine for my P90 again when I go to replace them, they simply don't stand up to general play.