You ordered through Canto Arms? I just got mine together and it is really cool. I had a Matrix lower and bought all the parts from Canto Arms as they have a better grip and angle. I am debating on getting some silver/grey paint and try to distress it a little. I got the silver flash hider and a Truglo "gobble-stopper" red dot for it.
My son thought it was kind of silly at first until I put it together. Now he is debating getting/building one. I am looking to get a few different types of mags. I have heard Black Dog mags are gtg and am ordering some.