These are bad. really bad. I bought 2 boxes for 2 new guys that just started playing and these things jam and do not feed. We tested them with at least 4 different guns and they feed horribly in all of them, other mags in the same gun feed just fine. I bought them because their G36 mags are wonderful.
If I could give it less than one star I would.
Pain in the ass to empty when you're done.
Rating: [1 of 5 Stars!]