If you want to watch a very compehensive review of an AEP, here is Reapers Airsoft's review of the CYMA CM.131 Gen. 3 AEP which he just left no stone unturned, unless you notice some oversight. As always, it is over an hour long... "Hello guys, today we are looking at the new CM 131 from Cyma, which is not only suitable for beginners."