Brownells 75th Anniversary - A Shooting Heritage
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Introducing the Brownell’s Retro A1 rifle length barrel assembly. Chambered in 5.56x45, the chrome lined barrel has a 1-12 twist and finished in black phosphate with an overall length of 20”. Muzzle threads are ½-28 and features a standard rifle barrel extension. The assembly includes a front sight base, .625 No F Marks, sight post, detent, spring, sling swivel, rivet, flat delta ring, barrel nut, weld spring, snap ring, and triangular handguard cap. Barrels are magnetic particle inspected. Machined from 4150 chrome moly steel. Everything you need for your Retro barrels!


Big Book Catalog, Issue:71, Page:018
  • A1 vs. A2
    A1 vs. A2

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  • BROWNELLS MILITARY BARRELS - AR-15 20" A1 RIFLE BARREL 1-12 ASSEMBLY

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    Cartridge: 5.56 mm NATO

    Length: 20

    Finish: Black

    Gas System Length: Rifle

    Muzzle Threads: 1/2-28

    Twist: 1-12

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