I never used it and traded the Pistol for another one I just had to have. The barrel has not had any rounds through it and is in perfect condition. The item "Storm Lake S&W M&P 9L 9mm 5 Stainless Steel Barrel 34146" is in sale since Sunday, October 15, 2017.This item is in the category "Sporting Goods\Hunting\Gun Parts\Pistol". The seller is "crossbone96" and is located in Jackson, Tennessee. This item can be shipped to United States.