Radian Weapons R0835 Ramjet + Afterburner Combo Fits Glock19 Gen3 Bronze 416R Stainless Steel The Radian Afterburner + Ramjet Combo Provide Unprecedented Recoil Reduction And Match Grade Accuracy In a Concealed Carry Package. The threadless Barrel Design Allows For Effortless Install/Removal For Cleaning. The Afterburner Compensator Is machined From Hardened Stainless Steel And The Ramjet Barrel From Hardened 416R SS, Both Are Enhanced With a Radianite Coating. This Combination Kit Is For: Glock G19 Gen3 Model: Ramjet + Afterburner Combo