Holosun HS510C & HM3X Combo | 2 MOA/65 MOA | 3X | HS510CHM3X

The Holosun HS510C and HM3X magnifier combo pairs an open-reflex 1x sight with a flip-to-side 3X magnifier to give a single, modular optic solution for modern carbines and pistols on Picatinny rails. The HS510C uses Holosun’s Multi-Reticle System (MRS) with Solar Failsafe and Shake Awake technologies, while the HM3X provides quick transition to 3X magnification with generous eye relief and an ambidextrous flip-to-side mount. This combination is intended for carbine and PCC setups and for competition or precision target work where quick target acquisition and optional magnification are both valuable.

Product Specifications

• The reticle is a 2 MOA dot and 65 MOA circle.
• The magnification is 1x for the HS510C and 3X for the HM3X.
• The battery type is a CR2032 cell.
• The power sources include battery and solar (Solar Failsafe).
• The advertised battery life is up to 50,000 hours (setting 6).
• The brightness control provides 10 daylight and 2 night-vision compatible settings.
• The HS510C offers unlimited eye relief while the HM3X magnifier provides 2.75 inches (70 mm) of eye relief.
• Mounting includes a QD Picatinny flip-to-side mount for the HM3X and the HS510C ships with an absolute co-witness mount (spacer included for lower 1/3 options).
• The HS510C housing is aluminum with a titanium hood and the HM3X housing is 6061 T6 aluminum.
• The HS510C window is 0.91 x 1.26 inches and the HM3X window is 0.58 x 0.77 inches.
• Adjustments are 0.5 MOA per click, with the HS510C offering ±50 MOA travel.
• The environmental ratings list the HS510C as IP67 and the HM3X as IP56.
• Additional features include Multi-Reticle System (MRS), Solar Failsafe, and Shake Awake.
• The UPC is 605930625721.

This Holosun combo gives a practical, modular optic package that covers fast, close-range engagements and an instant option for moderate magnification when precision matters. The HS510C’s multiple reticle choices and power redundancy pair with the HM3X’s flip-to-side mount and generous eye relief to offer a flexible setup for range, competition, and tactical-style carbine use. Built with aluminum housings and waterproof ratings, the kit is intended to perform reliably in routine field use.

Users and reviewers commonly praise the unit’s long battery life and its flexible MRS reticle options, and owners frequently note the HM3X magnifier’s clarity and generous eye relief.

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