I literally got out of bed to see if I could find them because I forgot to look. And I will have to look more when I should not be sleeping. If I find that I have more than one as I suspect, you are welcome to my extra.
Welcome to the forum from a fellow Texan. I am south of Dallas but get out your way occasionally. My dad grew up about an hour north of Abeline.
Start a thread and introduce yourself here. https://forum.308ar.com/forum/22-introductions/
Let us know about you and post a picture or two of your rifle.
Please don't make a live action version of that emoji.
You didn't read the contract you signed after the Jameson was empty?
I would say that could be true but I was asleep long before the Jamieson came out.
Do you have pictures of the brass, both the damaged and undamaged ones for comparison? What receiver extension (buffer tube) do you have and what is the internal depth? What spring are you using?
In this environment, you have to get why you know can work together. Here is one option.
https://www.cdnnsports.com/ar-308-upper-receiver-assembly-dpms-gen-1.html
https://www.cdnnsports.com/dpms-lr308-complete-lower-stock-graphite-black.html