Troy DOA Rear Sight

[jeffreywt]

Diamond aperature, folding rear battle sight by Troy Ind.
http://store.troyind.com/Di_Optic_Aperture_DOA_Folding_Rear_Sight_p/ssig-doa-rfxx-00.htm

Black finish, light use, great sight just not my cup of tea.

$80 shipped to lower 48.