Precision Reflex Inc., which opened in 1979, started in the design and manufacture of shooting products for the accomplished shooter. The line of sights and bases manufactured were on the cutting edge of the technology, for that time. Several U.S. patents were issued to the company. By the mid 1980′s, PRi was manufacturing the current line of high strength rings and bases designed especially for the police/swat shooter. The mounting systems, both of the past and present, have been made of high quality, high strength materials such as heat treated 4140 steel.