Practically new Holosun HE510C-GN. Was on a PCC that was shot about 500rds. Went with a different optic for my competition PCC. This is the MRS version which means it can toggle between 2moa dot, 65moa circle, or combination of both. Also has the solar back up. Paid $340 1yr ago, looking for $300 obo. Comes with 1.5 inch riser that can be removed with the quick release mount.