Yup. ARs are wobbly, even here. The Magpul MNP-15 grips and stock are rock solid though, so if you want a non-creaky M4, invest in those.

All the airsoft AKs are solid, except for the upper handguard. A little bit of tape on the inside of your handguard will fix that right quick though. Real AKs might as well be one piece, they are so solid. However, they all paled compared to how solid the StG.44 felt....