CYMA Sport Full Metal M14 EBR Designated Marksman Rifle Airsoft AEG (Color: Black / Crane Stock / Add 9.6v NiMH Battery and Charger)

"Not sure why this has such good reviews. The gun works fine but I can't get it to work with any mags except the hi-cap it came with. The part of the receiver that goes into the magazine, that on most AEGs is part of the hopup, on M14s is apparently part of the receiver which makes replacing it to get it to feed better impossible. It's also metal so it's digging into the plastic parts of plastic magazines and warping them rather than pushing them out of the way to release the BBs.