UTG Low-pro Removable Front Sight with Integral Red Laser Low profile, removable front sight tower includes A2 square post assembly and built-in tactical red laser Double coil spring for precise windage and elevation adjustment; pressure switch and batteries also included Push-button on/off switch; TS and four-point laser control and adjustment 2.64-inch length and 0.55-inch diameter; one-ounce weight, including battery; 15-to-20-millimeter beam diameter at 15 meters Includes limited one-year manufacturer's warranty