I been waiting to post this since I efile day my Form 1 back in March. I am running a Design Machine MRO mount, and side rails. My optic is aTrijicon MRO, and the barrel & Flash hider is CMMG. Hopefully tomorrow I can get some trigger time in, and I am most likely going to run a 25 yard zero. I know most prefer a 50 yard zero, and I run a 50 on most of weapons. Since this build is primarily for CQB ranges (with the option to shoot longer), and the mountain area I live in, the closer zero will work for me currently. I am planning on a 2nd PS-90 SBR in the near future. So once I have both with the same optic, & barrel I will do a 50 to 25 yard zero comparison.