||In terms of pros and cons, this is what I've seen so far.
-Accurate up to about 40-50 yards (hit a 2-3' wide tree about 10 times in a row) with .20g BBs.
-Great rate of fire
-Extreme amno capacity (2, 450 round mags and a 3000-5000 round drum).
- Good power. No exact measure taken but estimating around low- to mid-300 FPS.
-TONS of features. Scope (accessory use mainly), bipod/foregrip combo, folding stock, solid feel, and more.
-BAD INSTRUCTION MANUAL. The manual is helpful in that it offers instructions for 2 gun models of the M4 class but neither are this exact model. It comes with 2 connected batteries and says that they either need to go in 1) The air-cooling tube (seems like a good idea) or 2) the handle. Neither of those two options work because the gun is not sized properly. I was able to make a seemingly good fix by taping both batteries to the air-cooling tube's outside with electrical tape. Some other design flaws are present but not substantial.
-Very little amno provided initially. This gun is made to go in fully loaded with about 3900-5900 rounds and they give you 1000. I used all of this in target practice over the first 4 days before I could get into a real match. I tried using .12g BBs which worked but accuracy was horribly off and I abandoned that idea immediately.
-That thing you see in the picture on top in front of the scope...useless. I assumed that it was to hold the batteries which had not other place to go on the gun but I cannot find any safe way to open it.
-Expensive. Although it is a very impressive gun, it is not by any means cheap (but with all the add-ons, it is a good deal).
-Heavy. The gun itself, without amno, must weigh about 10-15 pounds.
Thanks for reading my review. Despite it's annoying, but not performance-altering, flaws, it is still a very good gun and I expect to still be using it for a few years of heavy play.
Rating: [5 of 5 Stars!]