Looks like it will promise a lot, it doesn't. - Adaptive Tactical EX Performance Adjustable M4-Style Stock f/AR15/AR10 Carbines

After use I have this to say. I liked this for the extra padding, and will say that I've used this stock for a Remington shotgun and it was great. On the AR it failed to have a good fit. Lockup was sloppier than a mil-spec gi type stock on three mil-spec tubes from Strike, Aero, and KAW Valley. Additionally the QD mount was not installed correctly and pulled right out once a strap was attached. From a bench it was good, especially when shooting .308 . It's almost like the ID was sized for a commercial spec tube. I'd return it if I could but I tossed the packaging, my mistake. Purchased a CTR as a replacement and it was perfect. A Hogue also fit very well. If you like grey, this one is a lighter grey and does not match Magpul.