"I bought 3 boxes thinking they would each be a different model, but I received all 3 M16/4 family. I kind of wish there was variety if you ordered the max, but I am still extremely happy considering this is just their extra stock or whatever.
Received an Amoeba RAS-S 007 (M4 SBR) which retails for $250, so that alone already covered my $200 purchace, but the other 2 M16 rifles were not too bad either. All averaged around 300FPS, had varying rate of fire (which is nice. The smaller the rifle, the higher rate of fire in my case) and had fairly fast resets for 2 of them.
If you are looking for a first airsoft gun I recommend going this route. You will not be disappointing. However, I suggest including in your order a battery for each gun (as only 2 came with it), and a smart charger (only one came with a trickle charger).
Alone, the worst of these rifles are worth around $100. If you absolutely want a different model just sell the ones you don't like on Ebay or something for a cheap price and use that money to buy another 3 boxes. I'm keeping all of mine to set up as a SMG, Carbine Length Rifle, and M16 LMG, but I am still going to put another order for another 3 rifles. Fantastic buy. One other thing to be aware of is that their shipping is slooooooooow. Expect half a month before your order gets to you. So buy in advance!"