I just ordered a oracle DPMS kit from stacks . I had to look a while to find this Particular kit . I would say 90 percent of businesses were backordered, same thing with the del-ton kits. I got a PSA lower from jssports. Same issue with lower also. I have bought four other Ars in the past year, but this is my first build . I orders a reciever block, a punch kit and universal tool for barrel and a a vice . If you guys have any recomendations it would be appreciated.