While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
If it is the "Magpul" clone stock then the recoil pad is held by the rear swivel. You don't need to remove the recoil pad to change the stock. There is a phillips screw on top of the grip which holds a plastic cover in place. Remove the screw, pop out the cover (it is tight) then you can access the stock bolt.