01-05-2022, 03:54 AM
....Brownell's has the 6ARC GO/NO GO kits in stock, $66, well worth the minimal cost, especially if you plan to build more or swap barrels or bolts/BCG's in the future.
...when doing a "mix & match" of parts, I would suggest getting the gauges and check your headspacing.
...when buying a barrel, if that vendor also offers a bolt/BCG, I would suggest getting what they offer...one would assume they have checked that it's compatible with the barrels they are selling and it implies it is covered by whatever warranty the vendor offers...
...even if you are not building a precision rig, the headspacing has more to do with safety...
...when doing a "mix & match" of parts, I would suggest getting the gauges and check your headspacing.
...when buying a barrel, if that vendor also offers a bolt/BCG, I would suggest getting what they offer...one would assume they have checked that it's compatible with the barrels they are selling and it implies it is covered by whatever warranty the vendor offers...
...even if you are not building a precision rig, the headspacing has more to do with safety...