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.
You mean there’s play between the upper and lower? Never held a 102 in person, but I have play between the upper & lower on my AR15, my ACR had it and my Swiss arms had it when I owned them. I used a half a foam ear plug in the AR & ACR and a chunk of eraser in the Swiss arms.
The Colt C8IURs we have at work all have a bit of play, my 102 has it, my personal ar15 has it. I just assume it's part of the design. Unless it's a lot of play, of course.
Have you ever owned an AR before? As others have mentioned, a little play is normal, don't worry, it doesn't affect accuracy and as long as it isn't excessive there is nothing to worry about.