Holosun HS510C Red Dot & HM3X Magnifier Combo
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Holosun
Overview
The Holosun HS510C Red Dot & HM3X Magnifier Combo offers a versatile optic solution for builders looking to enhance their shooting experience. With a 1/2 MOA adjustment capability, you can achieve precise targeting while the red reticle provides a clear sight picture that's compatible with night vision devices. Built from durable 6061-T6 aluminum and finished with a hardcoat anodized finish, this optic is designed to withstand tough conditions. This combination is frequently found in mid-length gas system builds chambered in 5.56 NATO, making it an ideal choice for versatile tactical applications.
Specifications
August 2026 on GunPartPicker
Holosun HS510C Red Dot & HM3X Magnifier Combo ranked #26 of the 210 optics builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #38 of the 481 optics builders have added. Builds with this optic are split between .308 Win (50%) and 5.56 NATO (50%), split between carbine-length (50%) and mid-length (50%) gas systems, and mostly AR-15 (75%, then AR-10 25%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $484.99, so there haven't been real sales lately. Buying today, the lowest price is $484.99 at Primary Arms, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 32 builds that include this one
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Magpul AR-15 CTR Stock Collapsible Mil-Spec Black
Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light with Tapeswitch
Magpul AFG-2 Angled Fore Grip - Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 1 →Builds in the community that include the Holosun HS510C Red Dot & HM3X Magnifier Combo
| Build | Parts | Total |
|---|---|---|
 | 14 | $2476.77 |
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