"This mag is ok. It is metal (obviously). It has a hard time fitting into my M4 mag pouches. For my gun, JG M4 S-System Enhanced 2013, it looks like you would angle the mag to fit into the gun, but actually you don't at all. Just put it straight up. I'm definitely gonna have to agree that it holds no where near 70rds, about 50 is accurate. Don't get the high cap version of this cause it sucks and feeds terribly. Overall, not bad, 7.5/10."