Missing parts - Command Arms Accessories Sniper Full Length Stock Tube Fixed Buttstock For A2 Rifle / SR25

So I had just received this stock on sale which was bought from Dvor.com for a pretty decent price. It seems like it's a little wobbly or unstable when shaking it. Anywho, I haven't installed it on my LR 308 yet because the instructions says that it comes with two metal plates that I am supposed to install on my buffer tube... where are those metal plates? Currently waiting for customer support to reply back... Also my oem buffer tube does not even fit into the CAA sniper stock either, so I have no idea how two metal parts are supposed to make it work. Sucks how there is not really much info on the web about this stock currently. Looks cool though :D