On the back end we obviously have the stock. There are a LOT of great stocks to choose from, and if people can't find a stock to make themselves happy, they need to get off the internet and go shooting more. Shown below are a few of the options that I had for this project. I choose the new Magpul ACS stock. The stock is new, has loads of battery storage that I'll never completely fill, a QD socket, a locking cam that prevents wobble on the receiver extension (buffer tube), is light weight, and most importantly, a fantastic cheek weld.

If those reasons aren't enough, its brand new, its Magpul, and everyone wants one. I'm honest, any of these stocks would work well, but the ACS has really grown on me over the past few months of playing around with the prototype.