Lithium is a superior PCC compensator from Ultradyne that allows a shooter to easily stay on target by featuring aggressive compensation ports along with added recoil reduction. This results in faster follow-up shots with increased accuracy. The gases are strategically vented, so they do not obscure the sight path or travel back towards the shooter. Like all Ultradyne muzzle devices, a timing nut is included for easy installation.FeaturesAggressive Compensation Ports100% CNC MachinedDynamount Ready416 Stainless Steel Note: Rated for PCC 9mm