MADBULL are always keeping up with the times with the new and up and coming stocks and this is an adaptation from the M7A1 stock! Although it is primarily used for the M7A1, it can fit on an M4 and M16 models and comes in Black, TAN and FDE.
The internals are comprised of Aluminium while the externals are polymer. The surface is smooth and all the curves are in the right places. At the top we have a sling attatchment. Underneath is an old swivel adapter and at the front is where you will always find the adjustment lever.
The storage space is what counts though. To open it, you'll notice a lever in the middle which you pull down and that'll lower the back which is hinged at the bottom meaning you can switch the batteries out very quickly. It's compatible with any stick type battery and even has a compartment at the bottom for PEQ type batteries that can be attached at the same time!