Just received this gun in the mail, great shipping times! This gun is very accurate with the stock barrel (with my tube red dot sight) The flip up iron sights are a great addition, as well as making this more tactical. Personally I love the M4 system, except the standard triangle front sight peg thing, which this does not have. This gun has a good weight to it. My only problem is the front battery compartment, to be short, its a pain in the ass. Extremely difficult to get it closed. I'm getting a PEQ box and am going to run my battery in that.
High fps out of the box (426 with .2's for me)
Flip up front and rear sights
Variety of places to put rails on the sides and underneath
Lots of space on top to put optics or whatever
Comes with a battery and charger (I personally recommend getting a smart charger)
Handguard battery compartment is EXTREMELY tight. took nearly 20 minutes of squeezing the handguard shut to get it to the point where I could lock it.
Rating: [4 of 5 Stars!]