Hydro Dipped AR15 Accessories Custom made to order AR15 Accessories. Many patterns, designs, colors to choose from. These are aluminum 2 piece 6.75" quad rails, Collapsible stocks, Pistol grip, and HexMag 30 round magazine. No more plain black rifles. Each set is unique and you will not find an exact same set anywhere. Each piece is finished with a durable Matte finish.