The Strike Threaded Barrel for GLOCK G19 provides a union between match grade performance with unsurpassed reliability and reduction in weight without sacrificing accuracy and durability. The threaded barrel end allows you to attach a 1/2"-28 TPI compatible threaded device or the included thread protector. The unique straight fluted design helps reduce weight and increase cooling with some SI styling. Using pre-hardened 416R premium grade stainless steel material and precision machining tolerances of exacting details, the barrel is corrosion resistant with high tensile strength. The Strike Threaded Barrel is a quick and simple direct drop-in installation. Pick between your choice of Black Nitride, Stainless Steel or Titanium Nitride (TiN) finishes, the Strike Threaded Barrel for GLOCK G19 should be your first choice in a new slide build or premium upgrade as the ultimate performance enhancer.Specifications:Fabric/Material: Pre-hardened 416R Stainless SteelBarrel Length: 4.46 inThreads per Inch: 1/2x28Barrel Twist Rate: 1-10Flutes: StraightCartridge: 9mm LugerBarrel Material: 416R Stainless SteelGun Make: GlockGun Model: Glock 19Weight: 5 ozFeatures:Fluted to reduce weight and increase coolingDrop-in installationSAAMI spec chamberPackage Contents:Strike Industries 4.46in Threaded Barrel for Glockx1 Strike Threaded Barrel for GLOCK G19x1 1/2-28 TPI thread protector