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Holosun Advance Rifle Optic-RD2 & HM3X Combo, 20mm housing, 2MOA RED Dot Reticle, Optic

Based on 19 reviews
Condition: New
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$279.99
Holiday Deal · 6% off was $296.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 14
Order within 6 hours and 52 minutes

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At a glance

Condition
New
Model
Advance Rifle Optic-RD2-HM3X-Holosun
Weight
3 oz
Color
Red
Material
Aluminum
Style
Reflex
Sport
Hunting
In the box
3x MagnifierAdvance Rifle Optic-RD2HardcaseLens ClothTool
Warranty
Lifetime Manufacture Defective Warranty
Works with
Rifle

Features 8

  • Up to 50,000 Hour Battery Life
  • Shake Awake Technology w/ Last Setting Recall
  • 2 MOA Dot
  • Battery Type: CR2032

Description

Advance Rifle Optic & HM3X (Advanced Rifle Optic) is an advancement on our popular 20mm 403 and 503 series optics. Advance Rifle Optic features an all- new 22mm housing design that mates perfectly with our magnifier series and an all-new 1.63” lower 1/3 co-witness pedestal mount. This Advance Rifle Optic- RD2 is available as a 2MOA RED dot only. The HM3X is an aluminum bodied 3X magnifier designed for use in conjunction with a red dot sight. The HM3X is feature-packed and includes a quick release, ambidextrous, flip-to-side Picatinny rail mount. Holosun includes a spacer with the HM3X that provides compatibility with absolute and lower 1/3 co-witness dot heights for maximum compatibility. The HM3X has a generous 2.75” of eye relief, is IP67 certified water resistant, and includes windage and elevation adjustment for precision zeroing to your optic’s zero. The HM3X also includes a built-in flat driver tool for easy adjustments.

Specs 28

Brand HOLOSUN
Color Red
Style Reflex
Sport Hunting
Item Weight 3 ounces
Material Aluminum
Magnification Maximum 3 x
Objective Lens Diameter 20 millimeters

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


Good buy
Holosun is such a great product. I’ve never had any issues using them. The dot and magnifier were super easy to install and made my rifle complete.
Reviewed in the United States on August 8, 2026 by M. Austin

Great buy
Great buy !
Reviewed in the United States on May 28, 2026 by Theodore Hiracheta

Red dot
The red dot was fine until you flipped the magnifier up and used it, then the red dot got distorted some. Haven’t shot with it to see what effects is gonna have on long range.
Reviewed in the United States on August 13, 2026 by JohnnyMBrown

One of the best combos you can purchase today!
Probably one of the best combos for a 3x magnifier and a red dot. Love the case they come in and super fast shipping. I purchased this pair for the eye relief of the magnifier as other name brands have less relief and require you to be almost near the charging handle.
Reviewed in the United States on October 23, 2025 by steven sawyer

Good optic
Great little optic
Reviewed in the United States on February 17, 2026 by Colby Engert

Nice optic (check out PSA)
$229 on PSA (Palmetto) :)
Reviewed in the United States on February 1, 2026 by koan
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