Faxon Firearms EXOS-523 Pistol Compensator Glock 43 9mm Black. The angled ports allow gas to deflect upwards as opposed to only deflecting sideways reducing up and down muzzle movement and improving reliability. Barrel protrusion is designed to fit flush with the slide and has been optimized for Faxon branded barrels. For all other barrels the barrel should protrude .600 or less for a flush fit. Each compensator comes complete with thread locker two 6-32 set screws and a 1/16 Allen wrench. Specifications for Faxon Firearms EXOS-523 Pistol Compensator: Manufacturer: Faxon Firearms Color: Black Caliber: 9mm Luger Finish: Anodized Fabric/Material: 6061 Aluminum Threads per Inch: 1/2x28 Gun Make: Glock Gun Model: Glock 43 Length: 1.125 in Weight: 0.05 lb Width: 0.865 in Package Contents: Faxon Firearms EXOS-523 Pistol Compensator Thread Locker Two 6-32 Set Screws 1/16 Allen Wrench What firearm models does the manufacturer say Faxon Firearms EXOS-523 Pistol Compensator is compatible with? The manufacturer suggests that Faxon Firearms EXOS-523 Pistol Compensator is compatible with Glock 43Faxon Firearms FF-P-A-COMP-SS-G-01: EXOS-523 Pistol Compensator Glock 43 9mm Black