I have 4 TangoDown Rail Covers that I used for a short time and have replaced with some magpuls. Not a thing wrong with them at all and 3 of the 4 look almost new. I can email pics on request, but you can check my 12 years of flawless feedback on ebay under this name, and also check the ee feedback here. I have roughly 10 positives and 0 negatives or neutral.
Bravo sells them for $15.97 each
$35 shipped takes them. I'll take paypal (+3% or discreet gift option) or money order. I'd also entertain trades. I'm looking for a few windowed pmags and 5.56 ammo. Otherwise, let me know what you have. Worst I can say is no thanks.
EDIT: Several people have asked and they are black in color. Sorry for the bad phone pics.