Will not replace the mlok free floating handgaurd - UTG Pro Super Slim M-LOK Forend for Ruger PC Carbine

Purchased to replace the free floating mlok handgaurd with something smaller. Liked the look of this one, but it turns out this will only replace the stock polymer handgaurds. Seems like a quality product if you're looking to replace the plastic handgaurd, but definitely won't work on models that come with the free floating handgaurd. Would be nice if that info was included in the product description.