Rival Arms Carry Barrel SIG Sauer P320 9mm Luger 3.9in 1-10 Twist 1/2-28 Thread Black. After that it often comes down to a match-grade barrel. Built from high-quality stainless steel precision polished and treated with premium coatings these barrels rival custom work and deliver the best in accuracy and performance round after round. Threaded barrels and protectors use 1/2-28 threads for compatibility with after-market accessories like suppressors and compensators. Specifications for Rival Arms SIG Sauer P320 Carry Barrel: Manufacturer: Rival Arms Finish: PVD Fabric/Material: 4340 Steel Barrel Length: 3.9 in Threads per Inch: 1/2x28 Barrel Twist Rate: 1-10 Flutes: Yes Caliber: 9mm Luger Gun Make: SIG Sauer Gun Model: SIG Sauer P320 Carry Weight: 0.3 Rifling Profile: 6 Groove Rifling Country of Origin: USA Quantity: 1 Features of Rival Arms SIG Sauer P320 Carry Barrel 6 groove rifling PVD coating creates a durable barrier against wear CNC-machined from 4340H steel billet results in superior corrosion Resistance and durability Target crowned muzzle Individually hand inspected No gunsmith required Limited lifetime warranty Package Contents: Rival Arms SIG Sauer P320 Carry Barrel What firearm models does the manufacturer say Rival Arms SIG Sauer P320 Carry Barrel is compatible with? The manufacturer suggests that Rival Arms SIG Sauer P320 Carry Barrel is compatible with SIG Sauer P320 CarryRival Arms RA-RA20P301A: Carry Barrel SIG Sauer P320 9mm Luger 3.9in 1-10 Twist 1/2-28 Thread Black