FN 20-100047 AR-15 Cold Hammer Forged 5.56 Barrel
- 10.5" Carbine Barrel 5.56 NATO $279.00
- 14.7" Carbine Barrel 5.56 NATO $349.00
- FN 20-100044 AR-15 5.56 NATO 14.7" M4 Carbine Barrel $279.00
- FN 20-100405 AR-15 5.56 NATO 14.7" M4 Carbine Barrel $315.29
- 16" Button Rifled Carbine $247.06
- 16" Mid-Length 5.56 NATO $279.00
- 5.56 NATO 14.7" Mid-Length $279.00
- 5.56 NATO 16" M4 Barrel $279.00
FN's cold hammer forged 16" M4 profile barrel features chrome-lined bore, Manganese Phosphate finish, and M4 feed ramps. Built with the same Chrome Moly Venadium steel used in FN machine guns.
Fits: AR-15
FN Cold Hammer Forged AR-15 Barrel
FN's AR-15 barrels are manufactured using the same proprietary cold hammer forging process and high-grade Chrome Moly Vanadium steel that FN uses in its renowned machine gun barrels. This heritage means your barrel is built to withstand sustained punishment and deliver consistent performance.
Quality Assurance
Magnetic Particle Testing: Every barrel undergoes magnetic particle inspection after forging to eliminate microstresses and material flaws. This rigorous quality control ensures consistency and reliability in every barrel that leaves the factory.
Bore and Chamber Protection
- Chrome-lined bore and chamber resist corrosion and heat erosion
- Extended barrel life through improved heat resistance
- Reliable chambering and extraction cycle after cycle
Feeding and Finish
- M4-style feed ramps and barrel extension provide consistent, reliable feeding
- Matte black Manganese Phosphate finish resists external corrosion and oxidation
- 16" carbine length gas system optimized for modern tactical and sporting applications
Whether you're building a duty rifle, competition platform, or reliable home defense carbine, this FN barrel delivers the durability and precision you expect from one of the world's premier firearms manufacturers.
