Brownells 75th Anniversary - A Shooting Heritage

Faithful Reproduction of the Very First Armalite~ AR-10~ Barrels

These blemished barrels from the first run of BRN-10 rifles did not make it into complete rifles.  Only finish blemished, most of which, if not all can be resolved with oil and cleaning.  Bores are excellent!

Many AR aficionados love their AR-15 platforms and want to build retro models, but a little-known fact about the AR platform is that the earliest rifle models were actually AR-10® chambered in .308 Win. The Brownells Original Style BRN-10 308 AR Barrels are faithful reproduction of the barrels found on the first Armalite® AR-10® rifles produced in the 1950s.

The Brownells Original Style BRN-10 308 AR barrels are available in two different configurations never seen before on the retro reproduction market. The fluted model allows builders to construct repros of early test models provided to the U.S. Army in the late '50s, while the lightweight-profile model emulates the barrel design used on AR-10® models sold to the Dutch and Portuguese militaries.

  • Barrel length: 20 inches
  • Rifle-length gas system
  • Weight: 2.5 pounds
  • Twist rate: 1:10

The barrels are QPQ-nitride finished and feature an accurate phosphate exterior finish. The barrels come with a barrel nut, round handguard cap, front sight base and front sight hardware.

Big Book Catalog, Issue:73, Page:014


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Cartridge: 308 Winchester

Length: 20"

Barrel Weight: 2.3 lbs

Contour: Lightweight

Finish: Phosphate

Gas System Length: Rifle, ...

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