Reliable, compact and fully waterproof, the OTAL aiming laser is used by law enforcement and military agencies worldwide. The OTAL mounts behind the front sight on M-16 or M-4 style rifles and the laser is offset to project around the front sight. Equipped with a visible Super Power Point laser for maximum daytime visibility and knurled thumb screw mount. Fits all MIL-SPEC-1913 Rails. Fully adjustable windage and elevation. Meets MIL-STD-810F for tough environmental conditions.