Hello. I just picked up a rail system for the m14 which also came with a US G.I. fibreglass stock which somebody painted camo. The rails system appears very nice, was made of cast aluminum, and had Knights rail covers on it. But, there is no markings on the rail set up at all. I have tried to find other rail systems, but this one looks the closest to the Knights style. Except, of course for the markings. Is there a company out there making a phony rail system? I expect for the airsoft market? How much would this be worth? I will post pictures later if that helps. Thanks.