Improves accuracy at varying distances.Upgrade to our PS90 Low Profile Red Dot Mount and keep every shot on target. Mounts available for Trijicon RMR/SRO, Trijicon MRO, Burris FastFire 2/3 and Aimpoint T-1/Vortex Crossfire Lowers your optic closer to the bore axis.Mount your RedDot Optic to your PS90 as low as possible with this Low Profile Red Dot Mount from.