The CIRCLE edition pistol compensator from the Strike Micro Threaded Comp can work with just about any size slide using a threaded barrel with 1/2"x28 Threads Per Inch. SI internal testing has typically seen a reduction average range (dependent on application) of 8-15% in felt recoil. Made from AISI 1144 steel bead blasted with Quench Polish Quench process finish, the Strike Micro Threaded Comp - CIRCLE is small and lightweight at only a total length of 16.3mm (0.64) while redirecting gas for recoil reduction.