Vantage Point Armory Light-Mounted Compensator for Sig Sauer M18Take control of every shot with reduced recoil, enhanced stability, and uncompromised cycling. This patent-pending compensator mounts via a SureFire X300U-A weapon light, replacing the lights top railsno need for threaded barrels. Built from 7075 aluminum, it’s rated for standard, +P, and +P+ ammo, and easy to remove for cleaning. Designed for use with factory slide, barrel, and frame, and works with most light-bearing holsters. Compatible with: Sig Sauer P320-M18 Includes: Lock Bar (x1), Set Screws (x2)