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.
Not sure about the rimless models but I would consider the rimmed versions as controlled.
As you close the action the bolt picks up the shell behind the extractor, that's why you don't have to completely close the action to cycle the shells out of the gun