Proof Research PR-15 PXT 6mm ARC 18" Stainless Steel AR-15 Barrel 152256

This PROOF Research PR-15 PXT barrel is an 18-inch stainless steel AR-15 barrel chambered in 6mm ARC, designed for use in compatible AR-15 pattern upper receivers. It features PROOFs PXT (Exponential Twist) rifling geometry with a 1:7.5 twist rate and is built with a traditional steel construction and stainless finish. The barrel incorporates a rifle +1 gas system, a 0.750-inch gas journal, and 5/8x24 muzzle threads, and comes fully chambered in 6mm ARC for straightforward integration into appropriate AR builds.

• PXT rifling with 1:7.5 twist in 6mm ARC
• Rifle +1 gas system with 0.750-inch gas journal
• 18-inch stainless steel barrel with 5/8x24 muzzle threads

This PROOF Research PR-15 PXT barrel combines modern rifling geometry with stainless steel construction for 6mm ARC AR-platform builds. It is suitable for shooters seeking a ready-to-install barrel that emphasizes accuracy potential and consistent performance.