I finally got a hold of 1, not bad. The mag body is not as thick as the Pmag / Emag. I have shot about 200 rounds thru 3 different rifles, (ACR, SCAR, XCR) and had no cycling or lock back issues with it. One note, I did not have to modify the battlemag for the SCAR's famous bolt hold open issue with plastic mags. It worked correctly right out of the bag with no modification.
I did not bang, throw, run over or abuse the battlemag in anyway other then use it as a bullet feeding device. Also, it is only 1 mag and other samples may not produce the same results. With that said, I will buy a couple more to play with.