TAC Knight Compensator .30 Caliber 5/8 x24 Thread Black. Due to its design all Knight compensators come with a timing nut to allow for proper horizontal port orientation and easy installation all while providing faster recovery and shorter cycle times between shots. Specifications for TAC Knight Compensator: Manufacturer: TAC Color: Black Finish: Nitride Fabric/Material: 4140 Steel Length: 2 in Package Contents: TAC Knight Compensator Special locking nut inplace of a standard crusher to allow for proper horizontal port orintation. TAC DS5L: Knight Compensator .30 Caliber 5/8 x24 Thread Black