This is of my KA Colt M4A1, its brand new and has a few faint scratches on the barrel.
It doesnt come with a charging handle or inner barrel/hop up, but does come with bolt and carry handle.
Price: 65 all in, should fit on G&P lowers also, but im not 100% sure
I dont have a pic at the moment, however it looks like the following
PM me for a faster respose, i also have a new Madbull Ultimate hop still in its packaging and a guarder armourers wrench for sale.