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Ar-15 M4a1 5.56 16" Barrel Fn

Ar-15 M4a1 5.56 16" Barrel Fn Reviews : Get best Ar-15 M4a1 5.56 16" Barrel Fn With Quality. You Want in Best Store.
 

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Ar-15 M4a1 5.56 16 Barrel Fn.

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This FN manufactured AR-15 barrel is produced to the same specifications as US military issue barrels. Starting from 4150 steel alloy, ...

Product Description

This FN manufactured AR-15 barrel is produced to the same specifications as US military issue barrels.  Starting from 4150 steel alloy, the barrel is button broached with a 1-7 right-hand twist per military specifications.  This process ensures a consistent & uniform bore.  Bore is then chrome lined & exterior finished with a mil-spec, black phosphate.  Muzzle features ½-28 threads for attachment of a standard A2 flash hider, or the muzzle device of your choice.  Barrel is chambered in 5.56x45mm NATO & includes a barrel extension with M4 feedramps.  This particular barrel features the M4A1 profile and a carbine length gas system.  OD at the gas journal is .750”.


Big Book Catalog, Issue:70, Page:019


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