THE AR BUILDER’S SECRET
Mar 26, 2020
2 minutes
BY PATRICK SWEENEY
In the old days, you’d see a lot of really ugly ARs. (One might say there are ugly ones today, but that’s another discussion.)
One mar on an AR build was the various and sundry scratches you’d see from someone trying to install the bolt hold-open roll pin. Basically, you’re trying to use a part to compress
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