There are plenty of high-quality red-dot sights on the market. The brand you gravitate toward depends largely on your budget and needs. Some of the best-known brands include Trijicon, Leupold, Aimpoint, Holosun, and Sig Sauer, all of which make excellent units. But don’t overlook Springfield Armory, Burris, Bushnell, Swampfox, and others.