Buy your Holosun Combo 65 MOA Ring/Red Dot from BattleHawk Armory today! The Holosun HS510C and HM3X Magnifier package combines speed, precision, and adaptability into one versatile optic system. Built for shooters who demand fast target acquisition at close range and the option to extend their reach, this combo is equally at home on carbines, tactical rifles, and modern sporting platforms. The HS510C open reflex sight offers a wide sight window for an expansive field of view. Its Multi-Reticle System allows instant switching between a 2 MOA dot, 65 MOA circle, or a combined circle-dot-without re-zeroing-making it adaptable for different shooting scenarios. Solar Failsafe technology extends operation by harvesting light, while Shake Awake ensures the optic is ready the moment you need it. Paired with the HS510C, the HM3X magnifier delivers clear 3X magnification and generous 2.75-inch eye relief for extended shots. Its ambidextrous flip-to-side mount makes transitions from 1X to 3X seamless, while the quick-detach system and included spacer provide both absolute and lower 1/3 co-witness options. Durable aluminum housings, IP-rated water resistance, and shockproof construction make both units rugged enough for demanding use. Together, they form a high-performance pairing that expands the capability of your rifle in any environment. Specifications HS510C Reflex Optic: Reticle: 2 MOA dot, 65 MOA circle, or circle-dot Click Adjustment: 1/2 MOA, 50 MOA range Battery: CR2032, up to 50,000 hours Solar Failsafe & Shake Awake technology Field of View: Unlimited, parallax free Length: 3.3" | Width: 1.8" | Height: 1.6" Weight: 8.3 oz IPX7 water-resistant, shockproof HM3X Magnifier: Magnification: 3X Eye Relief: 70mm (2.75") FOV: ~37 ft @ 100 yds Exit Pupil: 7.6mm (0.29") Housing: Aluminum, black finish Length: 3.9" | Width: 2.4" | Height: 1.6" Weight: 9.8 oz Mount: QD with spacer, absolute or lower 1/3 co-witness Flip-to-side design, ambidextrous IP67 certified This combo gives you the speed of a reflex sight and the precision of magnification-ideal for dynamic shooters who need both close-quarters responsiveness and medium-range capability.