The modeler Karuban No Aka sent this Kinzoku-sei no Frame project and as you can see, his concept is basically to have an Astray with a Black Frame. He chose to maintain a single katana and two daggers only instead of using the huge Tactial Arms, he chose not to have any overpowered melee weapon. For the paints, he used Bosny Yanmar Bronze and Metallic Black.