We’ve worked with the below armorers to provide installation services for the ODS Rear Sight Tower (RST). Please contact them directly for pricing and lead time. Please be advised that these are some of the best builders in the industry. Their work is highly sought after, and lead times may range between 1 and 6 months. There are many other excellent armorers in the country who can do this job well. We will be adding more armorers as time allows.