Type/Color: Compensator The Odin Works Atlas 9 Compensator is an innovative design intended for use with all 9mm Luger pistol caliber carbines. The core and cap are constructed of isonited 416R stainless steel and the sleeve is made of titanium. All timing and tuning is done with the sleeve. Installation is a simple matter of screwing it onto the barrel, no shims or crush washers are required. The Atlas 9 greatly reduces muzzle flip and perceived recoil, while keeping the blast well forward of the shooter.