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FN AR-15 18 Chrome-Lined Manganese Phosphate Barrel
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parts

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May 19, 2026

FN AR-15 18 Chrome-Lined Manganese Phosphate Barrel

Sold byAmmunition Depot•Posted Apr 27, 2026
Compare prices for FN AR-15 Barrel 5.56x45mm NATO 18" Government Contour 1:7" Twist Manganese Phosphate

$231.99

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This 18-inch AR-15 barrel is expertly crafted from high-quality U.S. sourced Chrome Moly Vanadium steel adhering to Mil-B11595E standards. Designed for superior performance each barrel undergoes rigorous High Pressure Testing and Magnetic Particle Inspection ensuring unmatched durability and reliability. The chrome-lined bore and chamber not only resist corrosion but also enhance heat erosion resistance significantly extending the barrel's lifespan. Featuring M4 style feed ramps this barrel

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Lowest Price: $231.99

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FN AR-15 18 Chrome-Lined Manganese Phosphate Barrel

FN AR-15 18 Chrome-Lined Manganese Phosphate Barrel

FnAmmunition DepotSKU/UPC: 20-100042
$231.99
View at Ammunition Depot
FN 20100042 AR-15 5.56x45mm NATO 18 in Button d M16 Profile Length Gas System, Black Cold Hammer Forged Chrome Lined, Rifle Barrel

FN 20100042 AR-15 5.56x45mm NATO 18 in Button d M16 Profile Length Gas System, Black Cold Hammer Forged Chrome Lined, Rifle Barrel

Fn HerstalHinterland OutfittersSKU/UPC: 177036
$279.00
View at Hinterland Outfitters
FN AR-15 Barrel 5.56x45mm NATO 18" Government Contour 1:7" Twist Manganese Phosphate

FN AR-15 Barrel 5.56x45mm NATO 18" Government Contour 1:7" Twist Manganese Phosphate

FnMidwayUSASKU/UPC: 691651
$279.00
View at MidwayUSA
FN America Ar-15 5.56x45mm NATO 18 in Button Rifled M16 Profile Rifle Gas System Length Rifled Barrel Oal M16

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Fn AmericaOptics PlanetSKU/UPC: 57D-ATB-FNH-20-100042
$279.00$299.00Save 7%
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Ar-15/M16 Button Rifled Barrels - Ar-15 M16 Barrel 18 Rifle Length 5.56mm

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Fn AmericaBrownellsSKU/UPC: 100055416
$279.00
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FN America AR-15 18" Barrel 1:7 Twist Button Broached, Black - 20100042

FN America AR-15 18" Barrel 1:7 Twist Button Broached, Black - 20100042

FnhPalmetto State ArmorySKU/UPC: 516551629467
$279.99$310.99Save 10%
View at Palmetto State Armory