I havent seen them for some time. Mostly see the 550 440 style front brace. I can see the use for dents and dings and bling factor but I fail to see how it will minimize the stress of the fiberglass if you lawn dart during a stab. I havent seen a 750 stress crack up front with out a lawn dart or 2 incident. Jet armor was a company that used to make the rail kits. I dont know if they made the metal brace. I can remember buying a few sets of rails back in 2000 or 2001 when they were closing everything out.