Noveske SPR AR-15 Barrel 6mm ARC 18" SPR Contour 1:7" Twist Stainless

Noveske's Stainless Steel AR-15 Match Barrels feature 416R stainless steel that's hardened to 30 RC. The bore is given improved polygonal rifling that slightly boosts projectile velocity and reduces the speed of the bore's erosion, meaning superior accuracy retention that outlasts that of barrels with conventional rifling. All Noveske match barrels have a medium contour, bead-blasted satin finish, M4 extended feed ramps, and are threaded at the muzzle for the addition of flash hiders, muzzle brakes and/or sound suppressors. This barrel is shipped with a pinned, low profile gas block, gas tube, barrel extension and a factory-headspaced bolt to guarantee proper fit and lockup.