I have been seeing article about 308 barrels extensions.

SPB
[subject]
Monday, April 30, 2018, 10:27 (3054 days ago)

What is it?

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if you are building your own 308 AR then you would use a

Gary Reeder
[subject]
Monday, April 30, 2018, 10:36 (3054 days ago) @ SPB

little 1½" barrel extension to mate the barrel together with your upper. That is the only barrel extension I know of.

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Ah, thank you.

SPB
[subject]
Monday, April 30, 2018, 13:03 (3053 days ago) @ Gary Reeder

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