I am looking at replacing the barrels on several ars that are giving me issues. I did some research on the 6.5 grendel forum and one maker that came up was Faxon, so I ordered up one of those. Not sure what to get for the second one. Alexander arms have a good reputation, or for another few hundred bucks i could get a kreiger or the like. What have you guys had good luck with? The Barrels from Brownells have good reviews at pretty low cost. Does anyone here have experience with them?