Good ol’ Aimpoint CompML2 with a GDI mount (https://bravocompanyusa.com/gdi-cmc5-osm-optical-sight-mount/). Sale price $350 w/o shipping.
Trade needs: EOTech magnifier, Crye JPC (med/large), Arcteryx LEAF gear (L/XL), SF600 or similar for AR, 3-day/assault pack.
PM, email cmandelin@hotmail.com, text 919-945-9209.