Originally Posted by
Outlander Systems
I’ve had three DD uppers and they all had this. No issues whatsoever with any of them.
How many rounds through each of them? I'm more concerned about long term durability, like the pin holes egging out at high round counts.
ETA: I've gotten to inspect several DD's since last year and noticed that they all had the pin holes like this. That's part of what has me considering that it's not an issue and is normal. I'd really like to convince myself it's not a potential problem at high round counts, because other than that one thing it was the closest to perfect AR I've had.
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