King Arms M4A1 the receiver will be metal as for the stock, grip and hand guard they will likely be plastic (unless you have an RIS) and the carry handle is removable so it has top rails!
Don't buy from buyairsoft
As for places you can buy the KingArms M4A1 its not hard to find but I can't tell you until you are Age Verified. For how to get Age Verified check out the Age Verified FAQ.
Originally Posted by FirestormX
I know that isn't really what you asked, but it's the internet, and I like to type things that don't matter.