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A Critical Component of Any Retro AR-15 Build

The AR-15 is more than a half-century old, and the rifle and subsequent platforms have undergone a great deal of evolution. Now, aficionados of the system can build reproduction of early rifles with the Brownells A1 Carbine Barrel Assembly.

The Brownells A1 Carbine Barrel Assembly is designed to be the ideal component of any XM177 rifle reproduction or any lightweight AR build, coming equipped with most of the materials necessary to complete a retro build.

  • Barrel length: 11.5"" (You are responsible for NFA compliance!)
  • Twist rate: 1-7"" or 1-12""
  • Carbine-length gas system
  • Threaded with 1/2""-28 TPI threads
  • Chrome lined chamber and bore

The Brownells A1 Carbine Barrel Assembly comes equipped with a front-sight base, .625"", no F marks, complete with sight post, detent, spring, sling swivel, rivet, flat Delta ring, barrel nut, weld spring, snap ring, and round handguard cap installed.

Now this barrel comes sans the Front Sight Base for user customization!


Big Book Catalog, Issue:72, Page:012

BROWNELLS MILITARY BARRELS - AR-15 11.5" A1 CARBINE BARREL ASSEMBLY

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Out of Stock

Cartridge: 5.56 mm NATO

Length: 11.5"

Contour: Carbine

Finish: Black

Muzzle Threads: 1/2-28

Twist: 1-12

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This item is currently unavailable for backorder.

Cartridge: 5.56 mm NATO

Length: 11.5"

Finish: Black

Gas System Length: Carbine

Muzzle Threads: 1/2-28

Twist: 1-7

Discontinued by Brownells

Product has been discontinued and no longer available.