Used bolt on (2 allen bolts) AR15 A2 rear sight. Dual aperature (0-2 & LR), same looks and adjustments just like a A2 handle sight.
Appox. 2"L X 2"H X 1.5"W (unable to post pics) has some areas touched up, edges dinged and inside of mounting area has been filed...? I received it in a trade.
$40.00 shipped CONUS or trade for USGI AR 30rnd mags. Email is best.