The Wolfpack Armory Night Howler Gen 3 now has improved compatibility with other manufacturers mounts. Compatible with Plan B and Rearden type tapered mounting system. FeaturesActs as a sacrificial blast baffle to reduce suppressor erosion.Equal ports all around so no timing is needed.Compatible with Plan B and Rearden type tapered mounting systemReduces muzzle flashExternal wrench flats allow removal of the muzzle device in the event of carbon lock