Holosun is the most popular brand in firearms optics and laser targeting aids. Holosun Technologies is based in Walnut, California, and supplies the hunting, military, & law enforcement market. The Holosun Red Dot sight products, specifically the Holosun RMR sights, are the company's most popular products, and they include the Holosun 407K, Holosun 507K, Holosun 508T, Holosun 507C, Holosun 509T, Holosun 510C, and the Holosun 512C. Holosun magnifier devices allow you to pair with a Holosun red dot sight to increase your targeting range. Holosun IR laser devices including the Holosun LS117IR & the Holosun LS321R provide military-grade performance. Browse our full catalog to find the best Holosun sights for AR15 rifles and pistols.