Greetings,
I'm new to the forum, but I'm hoping that I can get a questioned answered. I picked up this receiver shown in the pictures below a couple of weeks ago as a project and was wondering just what do I have. I was told that it was a topper, but I can't find any receiver picture with a hole in the thread area for the stock bolt. Hope someone has some information to help identify what I have.
Thanks,


I'm new to the forum, but I'm hoping that I can get a questioned answered. I picked up this receiver shown in the pictures below a couple of weeks ago as a project and was wondering just what do I have. I was told that it was a topper, but I can't find any receiver picture with a hole in the thread area for the stock bolt. Hope someone has some information to help identify what I have.
Thanks,

