Audere TSO Compensator 9mm 1/2x28 Matte Black. The audere TSO Compensator 9mm 1/2"-28 delivers an immediate solution to this annoying problem. The TSO Compensator 9mm 1/2x28 threads onto the muzzle thread of your handgun and threads onto the muzzle face of the compensator. Because the mouth opening of the compensator is symmetrical the audere TSO compensator 9mm 1/2"-28 threads onto the muzzle face and muzzle side first. This allows you to quickly get into the shooting position and avoid any awkward movements associated with holstering or drawing the firearm. A properly fitted Audere TSO Compensator 9mm 1/2"-28 can serve as a direct attachment from the compensator bayonet to the muzzle of the handgun or can be used as an independent muzzle device. In either case the audere TSO Compensator 9mm 1/2"-28 Matte Black offers an instant attachment an optimum performance and it's easy to install. Specifications for Audere TSO Compensator 9mm 1/2x28: Manufacturer: Audere Threads per Inch: 1/2x28 Color: Black Dimensions: 1.55 X 2.60 X 4.60 in Package Contents: Audere Tso Compensator 9mm 1/2"-28 Matte Black Audere TS0001: TSO Compensator 9mm 1/2x28 Matte Black