I've recently purchased this M4 and I am completley in love with its durability and its performance. Very easy to upgrade and the realism is very convincing. I've had military guys believing it was the real thing. Also a friend of mine has the JG M4 and my classic army out preforms his easy. Only thing i was not a fan of was the stock but to each his own, plus that is a very easy part to upgrade with airsoftgi's great selection.
Easy to upgrade
Overall great machine
Not a fan of the stock, easy to upgrade though
Rating: [5 of 5 Stars!]