Holosun HS510C + HM3X 3x Magnifier Combo (Red Reticle)
Key Features
- Complete Optic + Magnifier Kit – Pairs the HS510C open reflex red dot with the HM3X 3× flip-to-side magnifier for close-range speed and mid-range reach.
- Red Multi-Reticle System (MRS) – Switchable 2 MOA dot, 65 MOA circle, or combined circle-dot reticle from a single 650nm emitter.
- 3× Flip-to-Side Magnifier – HM3X flips into place behind the optic for instant 1× to 3× transitions and flips clear for unmagnified speed.
- Solar Failsafe & Shake Awake – Solar backup supplements battery power; motion activation wakes the optic instantly and powers down when idle.
- Titanium Protective Hood – Reinforced hood shields the optic housing and glass from impact.
- Dual Quick-Detach Mounts – Optic ships with an absolute co-witness QD mount; the magnifier rides on an ambidextrous flip-to-side QD mount.
- Adjustable Co-Witness Height – Included HM3X spacer supports both absolute and lower 1/3 co-witness setups.
- IP67 Waterproof – Sealed optic and magnifier housings shrug off water, dust, and harsh conditions.
Description
The Holosun HS510C + HM3X Combo is a complete speed-and-distance rifle package, pairing Holosun's popular HS510C open reflex optic with the HM3X 3× flip-to-side magnifier. The wide-window 510C delivers fast, parallax-free aiming up close, while the HM3X flips into place for positive target identification and precise holds at extended range, then flips clear in an instant.
The 510C's Red Multi-Reticle System switches between a 2 MOA dot, a 65 MOA circle, or a combined circle-dot reticle from the same 650nm Super LED, backed by Solar Failsafe and Shake Awake for up to 50,000 hours on a single CR2032. The HM3X adds true 3× magnification with 2.75″ of eye relief on an ambidextrous quick-detach flip mount, and its included spacer supports both absolute and lower 1/3 co-witness heights. Both units are IP67 waterproof and built on aluminum housings for hard, all-weather use.
Specifications
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| RED DOT — HS510C | |
| Reticle | MRS: 2 MOA Dot, 65 MOA Circle, or Circle-Dot |
| Reticle Color | Red (650nm) |
| Magnification | 1× |
| Window Size | 0.91″ × 1.26″ |
| Battery | CR2032 (side tray) |
| Battery Life | Up to 50,000 hrs (setting 6) |
| Brightness | 10 Daylight + 2 Night-Vision |
| Housing | 6061 Aluminum w/ Titanium Hood |
| Adjustment / Travel | 0.5 MOA per click / ±50 MOA |
| Submersion / Vibration | IP67 / 5000G |
| Weight (Body) | 4.94 oz |
| MAGNIFIER — HM3X | |
| Magnification | 3× |
| Exit Pupil | 7.6mm |
| Eye Relief | 70mm (2.75″) |
| Field of View | 7° |
| Transmittance | 75% |
| Lens Material | Optical Glass |
| Mount | Ambidextrous flip-to-side quick-detach (QD) |
| Housing | Aluminum, MAO, Black |
| Submersion | IP67 |
| Dimensions | 3.9″ × 1.7″ × 2.5″ |
| Weight | 9.8 oz |
| FITMENT | |
| Optic Mount | Absolute Co-Witness QD (1.41″) |
| Co-Witness Options | Absolute & Lower 1/3 (via included spacer) |
| Direct Mount | Picatinny Rail |
Package Includes
- ✓HS510C Open Reflex Sight (Red)
- ✓Absolute Co-Witness QD Mount (1.41″)
- ✓HM3X 3× Magnifier
- ✓Flip-to-Side Quick-Detach Magnifier Mount
- ✓Lower 1/3 Co-Witness Spacer
- ✓Lens Cloth
- ✓Multi-Tool
- ✓User Manual & Warranty Card
