Noveske SPR Barrel Features The Noveske SPR barrel is machined from 416R stainless steel with a 1:7 twist rate giving it the stability needed to stabilize heavier 6mm ARC projectiles favored by long-range shooters. The hand-polished Noveske proprietary Match Chamber is finished to tight tolerances to reduce chamber-induced accuracy variance from round to round. Disruptive Deep Fluting removes material along the barrel s length to cut weight without sacrificing rigidity which helps keep the rifle s balance manageable during extended strings of fire. Extended hand-polished feed ramps smooth the transition from magazine to chamber supporting reliable feeding across a range of bullet profiles. A pinned Noveske low-profile gas block feeds a rifle-length gas system a combination chosen to soften the recoil impulse and extend the dwell time that benefits accuracy at distance. The 14.5 barrel is threaded 5/8x24 to accept standard muzzle devices or suppressors rounding out a package built for serious precision work. Each barrel ships individually serialized along with a headspaced DLC-coated 6mm ARC bolt and a matched gas tube removing the guesswork of pairing components. Finished in a bead-blasted silver finish the Noveske SPR barrel is built for shooters assembling a dedicated long-range 6mm ARC upper. Noveske SPR Barrel Specifications Manufacturer: Noveske Model: SPR Barrel Caliber: 6mm ARC Barrel Length: 14.5 Barrel Material: 416R Stainless Steel Twist Rate: 1:7 Color: Silver Finish: Bead Blasted Thread Pattern: 5/8x24 Gas System: Rifle Length Included: Headspaced DLC-Coated Bolt Gas Tube Fit: AR-15 Available At: GrabAGun