Holosun’s factory combo: HS510C open reflex (selectable 2 MOA dot, 65 MOA circle, or circle-dot; Solar Failsafe + Shake Awake; CR2032; IP67) plus HM3X 3× flip-to-side QD magnifier (~2.75″ eye relief). HS510C about 4.94 oz; HM3X about 9.8 oz. Titanium hood on 510C. Picatinny/Weaver absolute co-witness mount. Manufacturer part number: HS510CHM3X.
Key features
- HS510C + HM3X factory combo
- 2 MOA / 65 MOA circle-dot (selectable)
- Solar Failsafe + Shake Awake; IP67
- HM3X 3× flip-to-side QD magnifier
- About 4.94 oz (510C) + ~9.8 oz (HM3X)
- Picatinny absolute co-witness mount
Buying from PM Customs in Yukon
Your HS510C/HM3X combo can ship directly to you, or choose local pickup in Yukon, OK by appointment (generally Mon–Sat, 8 AM–4 PM). Questions about fit or footprint? Call 405-265-8955.







