Originally Posted by hdwhit

Over what time period?

If you're keeping your magazines unloaded and you're waiting for Armageddon sometine in the far future, then, yeah, the PMag may be a viable choice. If you keep your magazines loaded (with the spring and magazine body under tension) then my experience over 30+ years is that plastic body magazines are NOT the way to go and will feed less reliably than steel or aluminum magazines.