Bent cantilever / not linear - Lion Gears Cantilever Riser Mounts

I bought this to act as a cantilever mount to place a magnified prism further back, but it is BENT! The rail extension bends downward immediately past the mounting portion, laid upside-down on a flat surface it's a rocking horse, mounting an optic results in that device pointing upward well off the barrel point-of-aim. The extension portion also isn't strong enough to prevent flex despite appearing to be pretty robust. I guess it could work for a light or foregrip, something not requiring ANY precision.