I would look at all the other components on the gun, if they are quality parts, I would buy it. Lower receivers are cheap, when compared to barrels, triggers, BCGs. IF you are worried what the rollmark says on the receiver, swap it out.
You never know how reliable your AR is going to be, till you run it hard. I have seen $2k builds choke on the competition circuit, while $750 builds run and run without any issues.
You never know how reliable your AR is going to be, till you run it hard. I have seen $2k builds choke on the competition circuit, while $750 builds run and run without any issues.