Several outlets have published reviews and rankings of the best optics for ar-15 rifles, including low power variable optics and red dots. The reviews cover a range of options, from budget-friendly to premium, and some outlets have tested and compared specific types of scopes, such as 1-6x and 1-8x scopes. The number of recommended optics varies by outlet, with some listing as few as 9 and others listing 15 or 25 options.