Griffin Armament Barrel Features The Griffin Armament ATM Barrel is billet machined from 416R chromium stainless steel to exacting tolerances a process that Griffin Armament describes as delivering the ultimate in drop in match performance for the Sig Sauer P365XL. Five axis machining performed in a single work holding position ensures that all critical dimensions on the breech maintain a theoretically perfect geometric relationship between the barrel slide and locking lug. The chamber is honed and polished to a smooth surface finish supporting reliable feeding across a wide range of ammunition from training loads to duty grade rounds. A 1:10 inch twist rate is matched to stabilize typical 9mm bullet weights used in both practice and carry applications. The black nitride finish applied to the stainless steel barrel adds corrosion resistance while reducing friction during the slide s cycling which can translate to smoother operation over the life of the pistol. Threaded at 1/2x28 the barrel is ready to accept a suppressor or other muzzle device giving P365XL owners added utility for concealed carry use beyond the stock configuration. At 8 ounces the barrel keeps the pistol s balance close to its factory feel despite the added capability. The Griffin Armament Barrel is available for sale at GrabAGun for Sig Sauer P365XL owners who want accessory and suppressor compatibility without sacrificing factory reliability. Griffin Armament Barrel Specifications Manufacturer: Griffin Armament Compatible Hosts: Sig Sauer P365XL Caliber: 9mm Barrel Finish: Black Nitride Barrel Material: Stainless Steel Twist: 1:10 Thread Pattern: 1/2x28 Barrel Length: 4 Weight: 8 oz Available At: GrabAGun