Manufacturer: Sun Optics USA CD13RD2
23x33mm Reflex sight offers four unique reticles and your choice of red or green illumination to best suit your needs. Features heavy duty steel construction, five stage IR red and green rheostat, glass aperture with cover and is waterproof, fogproof, and shockproof. Includes aperture cover and integral mount. Sun Optics, quality optics at affordable prices.