Knee cap shot is meh for AR. None of your feats require 9 agi, the highest I saw was 7. You can take those two points and put them into STR so you can take Full auto. Ambush spec is pointless. With how high your stealth will be you will hit over 100% crit rate without it. Commando spec is incredibly strong so that should be something to consider. All that per is pretty unnecessary and I’m personally not a fan of 3 con builds if I can help it. Gun nut is meh and if you are going to take suppressive fire you may as well get opportunist to get an extra 15% damage on all your bursts.