This is a custom built unit. All parts are upgrades from anything “factory”. SCT Frame. Threaded barrel. Compensated. 5 1/2 pound Ghost Trigger Parts. RMR cutout with Holosun HS507C X2 red dot with solar panel. 2 17 round magazines. $ 650.00 without red dot. $ 500.00 without Compensator or Threaded Barrel. I can configure any way you want up or down. Just ask. Cash Only, in person. Must be 21 and able to pass a background check. Text me any questions. 985-8seven0-seven441.