Hodge Defense barrels if and when you can find and get them are probably the most durable AR medium weight barrels that you can get. Spike's Tactical /FN 14.5" 5.56 NATO CHF Optimal Profile 1:7 Mid-Length Barrel is also an excellent medium weight (24.4 oz stripped) hard use barrel and yes the barrel's gas port is correctly sized, I checked it.
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