APOLLO MAX sets the standard for performance by providing breakthrough recoil reduction and unparalleled muzzle compensation for those who refuse to settle for second best. Utilizing advanced imaging and precision instrumentation, Ultradyne engineers have created an ultra-high performance, competition level compensator. Gases are strategically diverted away from the shooter and out of the shooters line of sight. Experience smooth, on-target recoil compensation in a competition-legal package. A timing nut is included for easy installation.