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TriArc TRACK 2.0 16" 5.56MM Straight Contour Barrel

Availability: Out of Stock - backorder and will be shipped once in stock.
Manufacturer part number: TRI-RB-08

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Product description

TriArc Systems TRACK 2.0 16" barrels use a propretary rifling known as Single Edge Polygonal (SEP). This hybrid rifling reduces any substantial deformation of the bullet due to its minimal engraving. SEP rifling allows the bullet to move more symmetrically along the barrel, enabling a straighter line towards the target. The Single Edge Polygonal rifling creates a tighter seal of the projectile which reduces forward escaping gases. Ultimately, this design has the capabilities of shooting match grade ammunition at sub MOA accuracy. TRACK 2.0 barrels have a NP3 finish on the barrel extension to enhance the barrel's resistance to wear. TRACK 2.0 barrels feature a new contour, the balanced straight contour. This contour is a great balance between standard/light weight profiles and heavier mid profiles.



  • 5.56mm Chamber
  • 4150V grade Milspec B-11595E Chromium-Molybdenum-Vanadium (CrMoV)
  • NP3 Coated Barrel Extension
  • Black Nitride Coated
  • Weight: 26.6 oz
  • 1:7 twist rate
  • 1/2x28 Muzzle Threads
  • .750” Gas Block Seat
  • Balanced Straight Contour
  • Flat 11 Degree Crown
  • Heat Treated
  • Mid-length Gas System
  • 16" (Legal Length)

Barrels are turned on centers and never chopped down from longer lengths.

Additional information
Manufacturer: Triarc Systems