Even the best billet machined uppers benefit from truing the barrel extension interface. Do it right, or find something else to do.

Even the best billet machined uppers benefit from truing the barrel extension interface. Do it right, or find something else to do.

By | 2017-09-04T19:50:58+00:00 September 4th, 2017|Uncategorized|Comments Off on Even the best billet machined uppers benefit from truing the barrel extension interface. Do it right, or find something else to do.

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