The Rival Arms RA20P101A Precision Drop-In Barrel for the Sig P365XL delivers match-grade performance in a rugged 3.70" 9mm Luger platform, crafted from CNC-machined 4340H steel billet and finished with a durable Black PVD coating to resist wear and corrosion while maintaining immaculate accuracy. This 1:10 twist, 6-groove rifling utilizes a precision engineered target crowned muzzle to optimize bore alignment and velocity consistency, ensuring tight groups shot after shot. Each barrel is individually hand inspected and designed for a true drop-in fit that requires no gunsmithing, so you can upgrade your pistol quickly and confidently. The combination of premium materials, meticulous machining, and surface treatment creates reliable performance under varied conditions, delivering enhanced control and repeatable results whether youre at the range or in the field. With Rival Arms engineering and a limited lifetime warranty, this barrel stands up to demanding use while maintaining a clean, professional field profile that supports accurate, consistent shooting with the Sig P365XL platform.