Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Original A2 Contour For A Custom Build Or Rebarrel Job

Ready-to-install, A2-profile 20" rifle barrel chambered for 5.56mm NATO comes with the barrel nut and extension, triangular handguard cap, and front sight tower installed. Machined from chrome-moly bar stock and magnetic particle inspected afterward to ensure quality, with a chrome-lined bore. Sight tower includes bayonet lug and sling swivel attachment point, ready for your choice of sight post and swivel.

AR-15, Issue:10, Page:018
Big Book Catalog, Issue:67, Page:019
Big Book Catalog, Issue:67, Page:613

SPECS: 4150 chrome-moly-vanadium carbon steel alloy, manganese phosphate finish, matte black. 20½" (52cm) OAL. .750" O.D. at gas port, .648" O.D. under handguard, .700" O.D. at muzzle. Chambered for 5.56mm NATO. 1-7" rifling twist rate. ½" x 28 tpi muzzle threads.

HIGH STANDARD - AR-15/M16 20" 5.56 A2 Barrel Chrome 1/2-28

AR-15/M16 20" 5.56 A2 Barrel Chrome 1/2-28
430000544AR-15/M16 20" 5.56 A2 Barrel Chrome 1/2-28

Mfr Part: ARBAM9349124


In Stock

Cartridge: 5.56 mm NATO

Barrel Weight: 2.46 lbs

Contour: Factory

Finish: Matte Black

Length: 20

Gas System Length: Rifle, ...

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AR-15/M16 20" 5.56 A2 Barrel Chrome 1/2-28