This is the mount that comes with the S.P.O.T. 30mm Red-Dot sight (see Photomans' review of this optic/mount here: SPOT Test
. The SPOT is currently mounted in a QRP so I have no use for the mount.
I'll let it go for
including shipping. I take PayPal or USPS Money Orders
See photoman's thread for a photo of the mount.
The mount allows cowitnessing of the iron sights in the lower 1/3 of the display.