Finished building this Saturday. My first build. Milled and drilled out an 80% Lower. Put my $ into the NB bolt, JMT Saber 3.5 single stage trigger with anti-rotation pins, Chrome Moly barrel (1 in 8), 51T ACC flash hider (for my suppressor) Not done. Still thinking on the optics. I have a 4X Strike Eagle but might opt for a reflex. Got the trigger and bolt CG on a great sale. ANYWAY I am happy for my first Ghost Gun. Doing 9mm AR pistol next.