TacFire AR Barrel — 5.56x45mm NATO, 16", Black Nitride for AR-15 (BAR55618N)
Upgrade your rifle’s heart with the TacFire 5.56x45mm NATO 16" AR-15 Barrel. Built for reliability, accuracy, and long service life, this do-it-all barrel features a Black Nitride treatment inside and out for exceptional corrosion resistance, smoother bore finish, and easier cleaning. Whether you’re building a first AR, refreshing a high-round-count upper, or configuring a dependable training carbine, TacFire’s tight tolerances and proven materials deliver the consistency you can feel on target.
Why Choose This TacFire 16" Barrel
True 5.56 NATO Chamber: Safely run both 5.56x45mm NATO and .223 Rem loads, giving you more ammo flexibility.
Black Nitride Finish: Ferritic nitrocarburizing increases hardness and wear resistance while maintaining a slick, easy-to-clean bore.
Optimal 16" Length: Balance velocity, maneuverability, and minimal NFA hassle—great for duty, home defense, and range training.
Accuracy You Can Trust: Quality steel, concentric bore, and precise crown support consistent groups with common bullet weights.
Drop-In Compatible: Built to AR-15 specs for straightforward installs with standard upper receivers and handguards.
Key Features at a Glance
Caliber/Chamber: 5.56x45mm NATO (compatible with 5.56 and .223 Rem)
Length: 16 inches
Finish/Treatment: Black Nitride (inside & out) for durability and corrosion resistance
Platform: AR-15 pattern rifles
Gas System: Mid-length or carbine-length (verify specific configuration on your build sheet)
Muzzle Thread: 1/2"-28 (standard for 5.56/223 muzzle devices; confirm on your unit)
Twist Rate: Optimized for common bullet weights (verify your preferred twist if ordering for specific loads)
Material: Quality steel barrel, machined to tight tolerances
SKU / Model: BAR55618N
UPC: 686294505058
Compatibility Note: Confirm your gas system length, gas block diameter (commonly .750"), and muzzle thread spec against your intended handguard and muzzle device before assembly.
Performance Benefits
Smoother Cycling: Correct porting paired with the right buffer/spring yields reliable function across a wide range of ammo.
Extended Barrel Life: Nitride treatment helps resist throat erosion and surface wear for more rounds between replacements.
Consistent Accuracy: True bore alignment and a precise crown help maintain concentric bullet exit—and predictable downrange results.
Easy Maintenance: Carbon fouling releases more readily from a nitrided bore, simplifying cleaning after high-volume range days.
Ideal For
General-Purpose Carbines: Training, classes, and practical shooting.
Home & Ranch Rifles: Fast handling with dependable performance.
Competition Practice Uppers: Budget-friendly accuracy and durability.
Custom Builds: Foundation for a new upper tailored to your needs.
Installation Tips
Headspace & Fit: Always verify headspace with the bolt you plan to use; consult a qualified armorer if unsure.
Torque Specs: Follow manufacturer torque values for the barrel nut; use proper anti-seize where recommended.
Gas System: Align the gas block precisely; use threadlocker or set-screw dimples as appropriate.
Muzzle Devices: Confirm 1/2"-28 muzzle threading and use a new crush washer or shims for timing brakes/comps.
Function Test: After assembly, perform a full safety and function check before live fire.
Care & Maintenance
Break-In: Modern nitrided bores generally require minimal break-in—focus on consistent lubrication and quality ammo.
Cleaning: Use a bore guide, non-marring rod, and solvent compatible with nitride surfaces; avoid aggressive abrasives.
Inspection: Periodically check gas block screws, muzzle device timing, and the barrel nut for torque and alignment.
Specifications
SEO-Optimized Highlights
TacFire 16" 5.56 NATO AR-15 barrel
Black Nitride treated bore and exterior for durability
1/2"-28 muzzle thread; drop-in AR-15 compatibility
Reliable, accurate carbine barrel for training, defense, and competition
BAR55618N, UPC 686294505058
Suggested Meta Title
TacFire AR Barrel — 16" 5.56x45mm NATO, Black Nitride for AR-15 (BAR55618N)
Suggested Meta Description
Build with confidence using the TacFire 16" 5.56 NATO AR-15 barrel. Black Nitride finish, 1/2"-28 threading, reliable accuracy and long service life. Model BAR55618N, UPC 686294505058.
Suggested Image Alt Text
“TacFire 16-inch 5.56x45mm NATO AR-15 barrel with Black Nitride finish (BAR55618N)”
Safety & Compliance: All firearm parts must be installed on unloaded firearms. Follow federal, state, and local laws. If you’re new to AR builds, consult a professional armorer for headspace and gas system setup.
Accurate, durable, and easy to maintain—the TacFire 16" 5.56 NATO barrel is a smart, no-nonsense upgrade for your next AR-15 build. The End
