Agency Arms 417 Single Port Gen 5 Barrel Compensators Black. It features a 1 chamber design (1 vertical venting port). It is designed to work with threaded barrels with a 1/2x28 thread pitch (Overall barrel protrusion should be 0.715in +/- 0.005in for optimal fitment). It features a front sight hole allowing you to transfer your existing front sight from your slide to the compensator. It is compatible with the G17 G19 G19X G34 and G45. (Not compatible with conversion barrels). Please note compensator may require tuning of the recoil system. It is designed to work with most factory loaded ammunition but will yield the best results with a heavier charged ammunition. Specifications for Agency Arms 417 Single Port Gen 5 Barrel Compensators: Manufacturer: Agency Arms Color: Black Caliber: 9mm Luger Fabric/Material: 7075 Aluminum Model Generation: 5 Weight: 1.7 oz Included Accessories: Vial of Red Loctite 2 Set Screws Allen Wrench Condition: New Features of Agency Arms 417 Single Port Gen 5 Barrel Compensators Material - 7075 Aluminum Color - Black Coating - MIL-A-8625 Type 3 Hard Anodize Thread Pitch - 1/2 x 28 Hardware included: 2 set screws allen wrench and a vial of Red Loctite Package Contents: Agency Arms 417 Single Port Gen 5 Barrel Compensators 2 Set Screws Allen Wrench Vial of Red Loctite Agency Arms 25C-417G5-SPCB: 417 Single Port Gen 5 Barrel Compensators Black