TRIARC Systems 13.9" TRACK 2.0 Profile 5.56 NATO Barrel - Mid-Length Gas

TRIARC Systems 13.9" TRACK 2.0 Profile 5.56 NATO Barrel - Mid-Length Gas

The TRIARC Systems TRACK™ 2.0 13.9" Barrel is engineered for shooters who demand superior accuracy, enhanced consistency, and uncompromising durability from their rifle platform. Built around TRIARC’s proprietary Single Edge Polygonal (SEP) rifling, this hybrid design blends the best characteristics of traditional and polygonal rifling to deliver exceptional bullet stability, reduced deformation, and a tighter gas seal. The result is a barrel capable of producing sub‑MOA precision with match‑grade ammunition—performance normally reserved for premium precision rifles.

TRACK™ 2.0 takes this innovation even further with an NP3®‑coated barrel extension, dramatically improving lubricity, corrosion resistance, and long‑term wear protection. The new balanced straight contour strikes the perfect middle ground between lightweight maneuverability and mid‑weight rigidity, making it ideal for duty rifles, competition builds, and high‑performance SBR/Pin‑and‑Weld configurations.

Machined from 4150V Mil‑Spec CrMoV steel, finished in BLACKNITRIDE™, and turned on centers (never cut down from longer blanks), this barrel is built for serious shooters who demand consistency, longevity, and repeatable accuracy shot after shot.

Single Edge Polygonal (SEP) Rifling
Hybrid rifling reduces bullet deformation, improves gas seal, and enhances accuracy.

Sub‑MOA Capable
Optimized geometry and minimal engraving enable match‑grade precision with quality ammunition.

NP3®‑Coated Barrel Extension
Provides exceptional lubricity, corrosion resistance, and reduced friction wear.

BLACKNITRIDE™ Finish
Nitrocarburized surface treatment increases hardness, corrosion resistance, and barrel life.

4150V CrMoV Steel Construction
Mil‑Spec B‑11595E steel ensures strength, heat resistance, and long‑term durability.

Mid‑Length Gas System
Smooth recoil impulse and reliable cycling across a wide range of ammunition.

Precision‑Turned Barrel
Turned on centers for superior concentricity; never chopped from longer barrels.

Pin‑and‑Weld Ready
13.9" length pairs perfectly with muzzle devices to achieve a legal 16" OAL.

Specifications

• Caliber: 5.56 NATO / .223 Remington
• Length: 13.9"
• Material: 4150V Mil‑Spec B‑11595E CrMoV steel
• Profile: TRACK™ 2.0 balanced straight contour
• Finish: BLACKNITRIDE™ nitrocarburizing
• Extension Finish: NP3® coated
• Gas System: Mid‑length
• Gas Block Journal: .750" diameter, 1" length
• Twist Rate: 1:7"
• Muzzle Threads: 1/2×28
• Weight: 25.6 oz
• Manufacturing Notes: Barrel is turned on centers; never cut down from longer blanks
• Patent Number: WO 2013074132 A1