It looks like the Koreans are back in the game of introducing new AEG technology. Hyperdouraku writes about the GBLS DAS (Direct Action System) M4A1 EBB which at first glance you will think of it as a Gas Blowback Rifle as its take down process is like the real thing. But once you pull the pin and separate the upper from the lower receiver, it is an AEG, and even it has a similar bolt carrier like the real steel ones. The blowback looks good and solid as the bolt goes a full stroke.
According to Hyperdouraku, the magazine is a 40-60-round type and versions will come in 14.5 and 10.3 inches in length.
