I am not inspired by what I am reading about a lot of the Aero 308 based builds. This concerns me as I have a Ballistic Advantage barrel + BCG for an upcoming Armalite build. I hope Aero's acquisition of Ballistic Advantage doesn't lead to QC issues like the OP is experiencing.
The only thing I have noticed so far from handling it is that the bolt gas rings (1 piece Macfarland style) are extremely tight inside the carrier. It takes a lot of force to slide the bolt back and forth. Way more than anything I've ever seen.
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