"I bought this gun about a week ago. I have had the change to use it for quite a bit. Overall, I am very pleased. The gun has a very comfortable weight, not too little, not too much. The construction is very sturdy, And everything is snug, minus the crane stock. The stock is a little bit wobbly, which is understandable. The charging handle, is solid, and fun to use. It does not go back the same distance as a real M4, Ar-15, or M16. The battery compartment is a litle difficult to get open, and the two tabs on either side of the buttplate are very stiff, but if you play round with it you will get the hang of it. The rubber on the buttplate is comfortable, yet it is slightly loose.
Overall, I am 98% pleased. The gun is very solid, shoots straight, and is hard hitting (Trust me :P, Ive been shot with it.) with a 20g BB. I would recommend this to anyone looking for a great gun, who is also on a budget.
P.S. I would use a Intellect 9.6v Mi-MH with this gun."