Ar-15 20'''' A1 Rifle Barrel 1-12 Assembly - Brn Ar-15/A1 5.56mm 20'''' 1-12 Twist Rifle Barrel Assembly
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Ar-15 20'''' A1 Rifle Barrel 1-12 Assembly - Brn Ar-15/A1 5.56mm 20'''' 1-12 Twist Rifle Barrel Assembly, The Brownells Retro A1 rifle length barrel replicates exactly the exterior contours of the original "skinny" barrel of the M16A1 rifle, so it's ideal for building your own Retro Rifle(TM) OR any AR-15 where a lightweight barrel is desirable. Chambered in 5.56x45, this chrome-lined barrel has a 1-12" twist and is finished in matte black phosphate, with an overall length of 20". The muzzle threads are A 1/2"-28 tpi, and in the back a standard rifle barrel extension is pre-installed. 5.56 NATO chamber (also accepts .223 Rem) Original 1-12" rifling compatible with heavier bullets Chrome-lined bore Requires a rifle-length gas tu Mfg: Brownells