SIG Sauer is world famous for their high quality firearms, but now you can install one of their optics to your firearm as well. The SIG Sauer ROMEO 1 PRO is a compact red dot sight specifically designed for use with P320/M17 slides. This small but powerful optic is ideal for your quick acquisition shooting needs. Whether you are looking for something for personal protection, duty, or competition, the ROMEO 1 PRO is the ideal Micro Red Dot Sight.