AR-9 Upper Receivers & AR-15 9MM Build Kits

At Davidson Defense we carry a full selection of quality AR-9 Complete Upper Receivers and Build Kits at the most competitive prices found online. Whether you’re building your first 9MM caliber AR-15 (also known as an AR9) or adding to your collection, we have something to fit your needs. Some of our set-ups even include a BCG, Charging Handle, Lower Parts Kit and Stock with Buffer Tube. You can rest assured that Davidson Defense has done the work to make sure that all of our build kits contain tried and true components that complement each other perfectly. We make it simple and affordable to build your AR-9 by offering both assembled and unassembled options.