I’m disassembling a factory assembled Stag Arms AR for some Cerakote work. Just some things I’ve noticed from many other well known factory assembled AR’s as well as this one. They use crappy standard gun oil on threads that should be getting Aeroshell 64. Another thing to take note of is that it’s only staked in one spot when the minimum should be two, most likely three is you use a FCD castle nut. It was very poorly staked From the get-go. The displaced metal was so thin because the Stag factory began staking much too close to the edge of the end plate and it cracked from them staking it to begin with. Also the castle nut was not even close to torqued to spec. I’ve seen all these same problems over and over from main stream companies.