Faxon Firearms Match Series Flame Fluted 18 Inch Rifle Length 223 Wylde AR15 Barrel Nitride 15BW8R18LMQ 5R NP3 UPC 816341023178
Product Description
The Faxon Firearms® Match Series Flame Fluted® 18-inch Rifle-Length .223 Wylde AR-15 Barrel (SKU: 15BW8R18LMQ-5R-NP3 / UPC: 816341023178) represents the pinnacle of match-grade barrel manufacturing, built specifically for precision rifle shooters, DMR/SPR builders, and 3-Gun competitors. Engineered to eliminate thermal drift and deliver uncompromised mechanical consistency, this barrel blends the extreme accuracy of 416-R stainless steel with the rugged durability of a full salt bath nitride case hardening. By pairing Faxon's iconic Flame Fluted profile with a soft-cycling rifle-length gas system, this barrel achieves flat-shooting recoil characteristics and rapid sight recovery across dynamic strings of fire.
Manufactured 100% in-house in Cincinnati, Ohio, from gun-barrel-quality 416-R ordnance stainless steel, this barrel incorporates button-cut 5R rifling with a versatile 1:8 twist. The 5R land-and-groove profile opposes lands across from grooves at gentle angles, dramatically reducing bullet jacket deformation, stripping, and bore friction while mitigating copper fouling. The entire barrel—bore, rifling, gas port, and exterior surface—undergoes a comprehensive salt bath nitride (QPQ) thermochemical treatment that yields an ultra-hard, corrosion-proof surface skin exceeding 60 HRC equivalent. To maximize feeding reliability, Faxon equips the barrel with a factory-pinned M4 barrel extension treated in an advanced Nickel Teflon (NP3) coating, ensuring self-lubricity, smooth cartridge stripping, and tight receiver extension lockup.
The patented Flame Fluted® geometry is an engineered structural feat: variable-depth flutes strategically remove non-critical mass while preserving high torsional and longitudinal stiffness. This multi-axis fluting expands the barrel's exterior surface area to accelerate convective heat dissipation during rapid-fire stages, preventing thermal grouping dispersion. Topped with a precision-machined 11-degree target crown and standard 1/2"-28 muzzle threads, the barrel ensures uniform gas release at bullet departure. Chambered in true .223 Wylde, it safely handles full-pressure 5.56x45mm NATO duty rounds while maximizing the intrinsic precision of match-grade .223 Remington handloads.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct fit for all Mil-Spec AR-15 / M4 upper receivers chambered in .223 Remington and 5.56x45mm NATO. CRITICAL: Requires a true rifle-length gas tube (nominal 15.125 inches) and a 0.750-inch diameter gas block. NOT compatible with carbine, mid-length, or intermediate gas tubes. NOT compatible with AR-10 / DPMS LR-308 large-frame platforms. Always utilize an internal splined extension rod (e.g., Geissele Reaction Rod or Midwest Industries Upper Receiver Rod) during barrel nut torquing to avoid shearing the extension pin or canting the receiver index notch. Torque barrel nut between 35 and 65 ft-lbs using Aeroshell 33MS grease.
- Verify that the host upper receiver and barrel extension are completely degreased, free of burrs, and that all live ammunition is removed from the armorer bench area.
- Inspect the Nickel Teflon M4 feed ramps and slide the barrel extension into the receiver bore, checking for snug radial fitment (apply Loctite® 609 or stainless shim stock if receiver bore tolerance is loose).
- Apply an even film of Aeroshell 33MS / Mil-Spec grease to the upper receiver's 1-1/4" x 18 UNEF barrel nut threads and mating extension shoulder; mount onto an internal splined reaction rod and execute 3 progressive torque cycles to 35-65 ft-lbs.
- Install a 0.750-inch gas block and rifle-length gas tube onto the 1.10-inch gas journal; verify precise gas port alignment using an armorer alignment tool or bore scope, and secure gas block fasteners to 25-30 in-lbs with high-temp threadlocker.
- Mount your designated 1/2"-28 muzzle device using a fresh crush washer or precision shim kit (torqued to 20-30 ft-lbs), verify headspace using 1.4636" GO and 1.4646" NO-GO 223/5.56 gauges with a stripped bolt, and conduct final staging checks.
Key Features
- Match-Grade 416-R Stainless Steel: Certified ordnance-grade stainless steel engineered specifically to handle high pressure, thermal cycling, and match-grade accuracy demands.
- Proprietary Flame Fluted® Profile: Variable-depth fluting sheds weight down to 1.97 lbs while increasing rigidity and expanding surface area for rapid convective cooling.
- Advanced 5R Button Rifling: Non-opposing lands and sloped groove transitions reduce jacket engraving stress, reduce bore fouling, and improve projectile aerodynamic stability.
- Salt Bath Nitride (QPQ) Finish: Case-hardened bore and exterior surface treatment provides extreme resistance against corrosion, abrasive wear, and chamber erosion.
- Nickel Teflon (NP3) M4 Extension: Self-lubricating extension finish guarantees slick cartridge feeding and precise lockup inside receiver extension tunnels.
- Recessed 11-Degree Target Crown: Protects the delicate bore exit lands from accidental physical impact while ensuring perfectly concentric muzzle gas separation.
- Hybrid .223 Wylde Chamber: Optimized leade geometry delivers match precision with commercial .223 Remington while safely firing pressurized 5.56 NATO munitions.
- Comprehensive In-House QC: Stress relieved, air-gauge tested, magnetic particle inspected (MPI), and individually headspaced prior to factory packaging.
Product Specifications
- Brand: Faxon Firearms®
- Model/Series: Match Series Flame Fluted® Barrel
- MPN / SKU: 15BW8R18LMQ-5R-NP3 / 15BW8R18LMQ5RNP3
- UPC: 816341023178
- Caliber / Chamber: .223 Wylde (Safe for 5.56x45mm NATO & .223 Remington)
- Barrel Length: 18.00 in (457.2 mm)
- Barrel Material: 416-R Match-Grade Stainless Steel
- Rifling Type: 5R Button Rifled
- Twist Rate: 1:8 Right-Hand Twist
- Gas System Length: Rifle-Length (Requires Nominal 15.125 in Gas Tube)
- Gas Block Journal Diameter: 0.750 in
- Gas Block Journal Length: 1.10 in
- Muzzle Thread Pitch: 1/2"-28 UNEF Class 2A
- Muzzle Crown: Recessed 11-Degree Target Crown
- Barrel Extension: M4 Feed Ramps, Coated in Nickel Teflon (NP3)
- Inside & Outside Finish: Salt Bath Nitride (QPQ / Melonite)
- Quality Control: Stress Relieved, Air-Gauge Tested, MPI, Individually Headspaced
- Net Weight: 31.52 oz (1.97 lbs / 893.5 g)
- Platform Compatibility: Mil-Spec AR-15 / M4 Upper Receivers
- Country of Origin: Proudly Made in Cincinnati, Ohio, USA
