The True Precision Sig P365 threaded barrel is engineered for superior accuracy and reliability in 9mm Luger. Manufactured from premium 416R stainless steel with precision machining that exceeds factory specifications.True Precision Sig P365 9mm threaded barrel416R stainless steel construction1/2 x 28 threading for suppressors and muzzle devices1/10 right-hand twist rateSAAMI specification chamberImproved chamfering and radius cutsEnhanced feed ramp design for reliable feedingDrop-in replacement with superior fit over OEMPerfect for shooters seeking enhanced accuracy and the versatility to mount suppressors compensators or other compatible muzzle devices on their Sig P365 pistol.