The HIPERFIRE® HIPERCOMP® Gen2 9mm Compensator - 1/2x28 is the perfect addition to your favorite pistol-caliber-carbine (PCC). The HIPERCOMP is compatible with M9 and M10 bayonets for even more versatility, and it’s the same size as the standard Mil-Spec A2 flash hider. Further, this compensator is compatible with 1/2x28 muzzle threads and features ports that redirect the gasses released from your PCC when shooting to give you better control over your firearm’s recoil. Crush washer included. Installs with MIL Armorer’s Wrench. Made in USA.