This gun is epic, when I first got it, all I could think was that it was actually my friends or something and there was no way I actually owned it.
The barrel is quite long, but as a DMR you shouldn't be doing much CQB with it anyway, but if you had to, you can easily remove the silencer and shorten the stock and you can get by. It is very easy to add a silencer or a flash hider, all you have to do is rotate the existing orange flash hider CLOCKWISE in order to remove. The rail system is very sturdy (all metal) and is large enough to fit whatever you need on it, I have a fore grip and a bipod and neither one interferes with the other. Basic M4/ M16 receiver, nothing special, note: the cocking lever on the far aft of the upper rail does not actually cock the gun and the casing ejection window does not open (although underneath lies the hop up). The crane stock is very intuitive and comfortable, sporting four locking positions. A bigger deal for some people than other but the upper rail fits flush with the rail on the receiver, therefore you can place an optic across both rails as I did with my 3-9x40 scope. Overall the gun is comfortable and easy to use and from what research I have done it seems that it is very flexible in terms of what accessories you can add to it, internal, external, and firing assists.
Specifications I wish I would have know to reduce the unknown:
-Gun is about 3 feet long, give or take 4 or 5 inches for the adjustable stock settings
-Rails are very close to if not one foot long
-Stock adjusts from 7" to 11" in 4 increments
-Good portion of the gun is metal, what isn't is then a very durable composite
-Accurate, even on full auto mode
-Flush upper rail
-Ergonomic design (credit to Eugene Stoner, inventor of the Ar15/M16/M4 series
-Crane stock works well, can fit a wide range of crane stock style batteries
-Easy to assemble, disassemble
-The outer barrel on mine shipped loose, but because it was so easy to remove rails and get to the set screws, that is hardly a con
-Pistol grip can get uncomfortable, but then I got some gloves
-Not ambidextrous, doesn't much matter for 90% of the population, unless you are in the practice of developing yourself as a ambidextrous shooter so you can shoot around any corner, as I am.
-Cocking handle does not actually work, but when would you actually use that?
(Note: It is taking some heavy thinking to come up with some bad things about this gun)
Rating: [5 of 5 Stars!]