Tactical Kinetics Pistol Barrel Sig P365 Threaded Black Nitride. 416R stainless steel is recognized for its corrosion resistance machinability and high tensile strength; it is the industry standard for premium Match Grade barrel manufacturing. Tactical Kinetics's propriety in house machining production and Quality control inspection process's allow us to attain an ultra-precise barrel with enhanced slide fit & lock up for improved accuracy. Barrels are 6 groove cut rifled 1:10 Twist Right Hand fully QC inspected double honed (rough and finish) to produce the smoothest bore possible with a Max Roughness Average (RA) of 12. Finished bore dimensions are held to +/- 0.0005" tolerance from nominal groove and bore dimensions but the dimensions are uniform to within 0.0002 for maximum consistency accuracy and quality. SAAMI Match Grade specification chambers precision cut and finished to a maximum Roughness Average (RA) of 16. The pre hardened 416R stainless steel is stress relieved to an exacting recipe after rifling and final hardness is 38-42 Rockwell C before final barrel profile machining is completed. Specifications for Tactical Kinetics Sig Sauer P365 Threaded Barrel: Manufacturer: Tactical Kinetics Color: Black Finish: Nitride Barrel Profile: Standard Threads per Inch: 1/2x28 Barrel Twist Rate: 1-10 Flutes: No Caliber: 9mm Luger Barrel Material: 416R Stainless Steel Gun Make: SIG Sauer Gun Model: SIG Sauer P365 Weight: 0.4 lb Condition: New Package Contents: Tactical Kinetics Sig Sauer P365 Threaded Barrel What firearm models does the manufacturer say Tactical Kinetics Sig Sauer P365 Threaded Barrel is compatible with? The manufacturer suggests that Tactical Kinetics Sig Sauer P365 Threaded Barrel is compatible with SIG Sauer P365Tactical Kinetics TK3066-BLK: Pistol Barrel Sig P365 Threaded Black Nitride