Faxon's Duty series pistol barrels for Smith & Wesson/M&P are machined 100% in house from stress relieved 4150 CMV steel, ensuring robust durability and precision. These barrels are then treated with a black Nitride coating, improving lubricity, extending barrel life and enhancing resistance to surface wear. The conventional rifling design supports a wide range of ammunition, including cast lead, providing versatility for various shooting needs. Designed for easy installation, these barrels drop into factory spec slides with no gunsmithing required. Faxon's barrels offer better than factory tolerances, ensuring a consistent, tighter lockup compared to OEM parts. This makes them an ideal upgrade for M&P Shield handguns, providing premium accuracy, fit and finish. Manufactured in Faxon's Cincinnati, Ohio facility, these barrels feature the signature X logo engraved on the top of the hood, with layered pocketing and caliber identification on the ejection port side. Backed by Faxon's lifetime guarantee, these Match Series Barrels are a quick and reliable upgrade for your M&P Shield, ensuring long lasting performance and superior shooting accuracy. 4150 premium steel selected for superior durability, longevity and accuracy 9mm SAAMI chambers superior accuracy with full SAAMI compatibility and reliable performance Tighter tolerances offers a drop-in installation with improved fitment and enhanced lock-up Conventional rifling is fully compatible with cast bullets The firearm is equipped with an 11 degree target crown Durable salt bath nitride finish for superior corrosion-resistance and enhanced wear protection