TRIARC Systems 16" TRACK Barrel

TRIARC 16" 556 TRACK Barrel


SKU: TS-16-M-TRK-BAR-556

This 5.56 Chambered 16" TRACK™ barrel is machined from 4150V grade Milspec B-1159E Chromium-Molybdenum-Vanadium (CrMoV) w/ a BLACKNITRIDE™ finish

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Length 16"
Material 4150V grade Milspec B-11595E Chromium-Molybdenum-Vanadium (CrMoV)
Profile TRACK
Finish Nitrocarburizing ( BLACKNITRIDE™ )
Extension Finish Np3®
Gas System Mid-Length
Gas Block Journal .750" Diameter w/ 1" Length
Twist Rate 1.7"
Muzzle 1/2x28 Threaded
Weight 1.71 Lbs
Other Info Barrels are turned on centers and never chopped down from longer lengths
Patent Number WO 2013074132 A1

Introducing TRACK™ 2.0 barrels, exclusively from TRIARC Systems. 

TRACK™ is a proprietary rifling known as Single Edge Polygonal (SEP) available through TRIARC Systems. The primary function of this innovation is to provide an improved rifling for a gun barrel, which has a single edge area and a polygonal area separating the grooves. In essence, it is a combination of standard and polygonal rifling. 

This hybrid reduces any substantial deformation of the bullet due to its minimal engraving. It allows the bullet to move more symmetrically along the barrel, enabling a straighter line towards the target. Furthermore, the tighter seal of the projectile reduces forward escaping gases, and therefore, minimal loss of gas pressures. Ultimately, this design has the capabilities of shooting match grade ammunition at sub MOA accuracy.

As an evolution of this barrel, TRACK™ 2.0 barrels also feature an NP3® finish on the barrel extension that enhance the barrel's resistance to wear. Furthermore, all TRACK™ 2.barrels feature a new contour: the balanced straight contour. This contour is a great balance between standard/light weight profiles and heavier mid profiles. 

****Coating Notes*****

NP3® metal finish offers many benefits. NP3® permits firing for longer periods of time between cleaning, dirt and powder residue have no wet or oily surface to cling to. When cleaning is required, the effort needed is minimal – usually requiring only a soft cloth. NP3® is very corrosion resistant. It provides a high lubricity and low friction co-efficient, greatly increasing the life expectancy of a firearm due to reduced friction wear. NP3® is a satin gray, non-reflective color ideal for all firearms. 


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  1. Fantastic product Review by Larry

    I bought the 16 inch track barrel in the mid length gas system for a full on custom lightweight build. The fit and finish on this barrel was perfect, no tool marks, rough edges, etc. Accuracy is outstanding. You can spend whatever amount you want on a barrel but this barrel is as good as anything out there and the company is great. (Posted on 1/8/2018)

  2. Best barrel I've ever used Review by Larry R

    I put this barrel in my latest custom build of all premium lightweight components. San Tan Tactical billet receiver, BAD Switchrail, Triarc BCG, etc. Accurate as a laser beam and I love the profile and finish. I've used barrels from everyone from Daniel Defense, Hanson and a few others, nothing has come close. I'll definitely buy more. (Posted on 9/1/2017)

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