The Shadow Systems DR 9mm barrel features precision engineering with 5-inch length and titanium copper nitride finish for enhanced durability and performance. This threaded and spiral fluted barrel offers improved consistency and reliability.Shadow Systems DR Model Threaded BarrelCompatible with DR920/MR920L and Gen 5 G17 pistols9mm caliber with 5-inch barrel length1/2x28 threading for suppressors and muzzle devicesTitanium Copper Nitride finish for corrosion resistanceSpiral fluted design for weight reductionFully supported chambers for hot +P ammunitionEnhanced lockup consistency without compromising reliabilityEngineered for competitive shooting and tactical applications this barrel delivers exceptional accuracy and reliability with both commercial ammunition and lead bullets.