Our MODERN MATERIEL 5.56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. Barrel design has come a long way over the past decade and our profile aims to  properly manage dwell times (velocity vs. recoil management) while providing the ideal balance.  Twist rates,  gas port diameters and barrel materials all play an important role in performance and heat dissipation.  We believe that the ‘best” barrel for 99% of enthusiasts is the one that offers consistency and longevity, is not particularly ammo finicky and has its weight biased towards the chamber.