Zaffiri Precision guide rod for Glock model G19 Gen 1, Gen 2, and Gen 3. 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 Zaffiri Precision Guide Rod G19 Gen 1-3: Manufacturer: Zaffiri Precision Color: Black Finish: Cerakote Fabric/Material: Stainless Steel Gun Make: Glock Gun Model: Glock 19 Gen 1, Glock 19 Gen 2, Glock 19 Gen 3 Length: 6 in Width: 1 in Height: 4 in Weight: 4 oz Condition: New Package Contents: Zaffiri Precision Guide Rod G19 Gen 1-3 This product is compatible with the following gun models: Glock 19 Gen 3, Glock 19 Gen 2, Glock 19 Gen 1