Ballistic Advantage Threaded Pistol Barrel SIG P365 Standard QPQ Spiral Fluting w/o LCI 1-10 Twist 1/2x28 Black. Known for its strength toughness and good ductility our pistol barrels feature a hardened 416R stainless steel material for absolute durability and corrosion resistance. Each barrel is honed lapped and tumbled to ensure it is free of any imperfection and ready for flawless performance with no break-in period required. All barrels are held to less than .0001 deviation of the bore reaching better than factory tolerance for optimum reliability and accuracy. Specifications for Ballistic Advantage SIG P365 Standard QPQ Spiral Fluting Threaded Pistol Barrel w/o LCI: Manufacturer: Ballistic Advantage Color: Black Finish: QPQ Threads per Inch: 1/2x28 Barrel Twist Rate: 1-10 Flutes: Spiral Caliber: 9mm Luger Barrel Material: 416R Stainless Steel Gun Make: SIG Sauer Gun Model: SIG Sauer P365 Country of Origin: USA Package Contents: Ballistic Advantage SIG P365 Standard QPQ Spiral Fluting Threaded Pistol Barrel w/o LCI What firearm models does the manufacturer say Ballistic Advantage SIG P365 Standard QPQ Spiral Fluting Threaded Pistol Barrel w/o LCI is compatible with? The manufacturer suggests that Ballistic Advantage SIG P365 Standard QPQ Spiral Fluting Threaded Pistol Barrel w/o LCI is compatible with SIG Sauer P365Ballistic Advantage BAPSS65ST3Q: Threaded Pistol Barrel SIG P365 Standard QPQ Spiral Fluting w/o LCI 1-10 Twist 1/2x28 Black