this gun is a pretty dang good m4, and i like the crane stock it has. the stock will work with the intellect 9.6v 1200mah nunchuck, the 1600mah nunchuck, or any other crane stock or nunchuck battery. if you plan to use a nunchuck, make sure the cells are not side by side on one line of the battery. anyway the gun itself is very nice, the body seem like a nylon fiber body, not abs plastic, which is stronger and ligher. the metal parts include the flashhider, outer barrel, front and rear sight, buffer tube, charging handle, and dust cover. the gearbox is ok, but i suggest getting a new cylender head, tappet plate, and nozzle if you plan to use this fairly rough, because when i first got it, i field stripped it(taking out the body pins and pulling of the upper reciever) and the nozzle just fell out of the gun. this is when i first recieved the gun. what had happened is the metal nozzle on the cylender head broke off completly, so if you have extra parts laying around and can or know some one that can do gearbox work, then your fine, but if your a first time player, i suggest somthing else, but i think it broke during shipping, because asgi was able to give me a chrono, which was 335fps, and when i shot it the first time it was like 110fps and was going like 15ft. after i replaced the cylender head, it was shooting about 330fps and reaching out to about 130ft consistantly.
nylon fiber body
desent internals except cylender head
no barrel wobble what so ever
i think my cylender head was just shipping, or a factory defect, so just buy a extra cylender head just in case, only if you can work on gearboxes!!!!!!