Tiger Rock Glock 19 Barrel 9mm 1-16 Twist Black Nitride Black Small. 9MM Drop in fit for Gen 1-4 Glock Gen 5. Machined from 416 stainless steel and heat treated to RC 41 Warning: This product is to be installed by a competent gunsmith. No liability is expressed or implied for damage or injury which may result from installation or use of this product. Specifications for Tiger Rock Glock 19 9mm Barrel: Manufacturer: Tiger Rock Color: Black Finish: Black Nitride Fabric/Material: 416 Stainless Steel Gun Make: Glock Gun Model: Glock 19 Barrel Twist Rate: 1-16 Package Contents: Tiger Rock Glock 19 9mm Barrel What firearm models does the manufacturer say Tiger Rock Glock 19 9mm Barrel is compatible with? The manufacturer suggests that Tiger Rock Glock 19 9mm Barrel is compatible with Glock 19Tiger Rock BRG19-N: Glock 19 Barrel 9mm 1-16 Twist Black Nitride Black Small