This one was actually coated in three colors MagPul O.D. Green, Desert Sand and my custom Flat Dark Earth mix. We modeled the scheme after another similar 2 color pattern we had seen on the AR Forums.

This is my son's Build, It's an A2 build with a DMPS Upper Receiver, ATI Omni Hybrid Lower, PSA BCG, Magpul Furniture, DPMS 3 Prong Flash Hider, Armalite Clamp on A2 FSB, PSA LPK, DPMS Upper Kit, and an Extended Charging handle latch.