USED Arc Division Sparc V1 Pistol Compensator 9mm 13.5x1 LH Anodized Gold. The Sparc will help you shoot flatter and faster in all situations. We offer our comp threaded in the standard 1/228 and 13.5x1 LH for Glock factory threaded barrels and 9/16x24 for .40Cal. Specifications for Arc Division Sparc V1 Pistol Compensator: Manufacturer: Arc Division Fabric/Material: 7075 Aluminum Gun Make: Glock Fit: Glock Features of Arc Division Sparc V1 Pistol Compensator Compensator Square No guiderod cover Package Contents: Arc Division Sparc V1 Pistol Compensator Threadlocker Allen Key Set Screws Instruction Sticker What firearm models does the manufacturer say Arc Division Sparc V1 Pistol Compensator is compatible with? The manufacturer says that Arc Division Sparc V1 Pistol Compensator is compatible with Glock 19 Glock 17 Glock 43 Glock 23 Glock 22Arc Division 32047: Sparc V1 Pistol Compensator 9mm 13.5x1 LH Anodized Gold