Quoted:
I recently purchased an Aug A2 receiver for a song and am now looking for a barrel. I really hate to put a US made barrel on a nice Austrian gun.
Does anyone sell NOS Austrian barrels? Or even gently used?
Is the original Austrian tulip flash hider set up able to be mounted on the US barrel?
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Unfortunately no one sells NOS AUG barrels as a regular item. As others have said, Gunbroker is prob your best bet.
Is your A2 receiver one of the CCF-imported receivers? If so, you are going to need the US barrel and flash hider to count as two US parts. Also, the US barrels are not serialized whereas the Austrian barrels are serialized to the receiver. An Austrian barrel will be mismatched to the receiver, the US barrel will not. The US barrels are excellent. Steyr imported their CHF mandrel and has FN making them to Austrian spec.
The check nut is different on the Austrian vs. US barrels. The thread pitch is the same. If you remove the flash hider, remove the check nut, you can replace the check nut with an Austrian one from Pete Athens.