Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Special offer available for this product. Click here to see!
Questions & Answers
Customer Reviews
Most Recent Reviews
Very small dot ! by me, Verified Owner, September 26, 2026
I have seen and shot maybe 30 plus red/green dots ( 1 MOA to 6 MOA ) in my life , but I have never seen a 3 MOA , that looks like a 1 MOA in size before !
Most Recent Reviews
Not terrible but not great. by Timothy Keeler, Verified Owner, July 3, 2026
The optic itself is very nice I like the buttons and the widened hoop. The glas is nice and clear. BUT. The reticle star bursts BAD. unless you are shooting in direct full sunlight you may as well get something else. The star burst make s the dot 3 t...
Read More...
Read All 2 Reviews
Show In Stock Only
2 Models Available
Reticle
All
Illumination Color
All
Search

Product Info for ZeroTech Optics Thrive HD RMR FootPrint 1x28mm Reflex Red Dot Sight w/ High Mount

Maximize your shooting capabilities with the THRIVE HD Reflex Sight High See-Through Mount. Designed for fast target acquisition and precision shot placement, this reflex sight features a high see-through mount, allowing you to maintain visibility of your iron sights while using the optic. With advanced shake awake technology, adjustable brightness, and a rugged build, this sight is perfect for shooters who demand both speed and reliability. Built to fit a variety of firearms with a standard Picatinny rail interface, the THRIVE HD Reflex Sight is ready to perform in any condition.image

WARNING: California`s Proposition 65

Specifications for ZeroTech Optics Thrive HD RMR FootPrint 1x28mm Reflex Red Dot Sight w/ High Mount:

Manufacturer: ZeroTech Optics
Color: Black
Fabric/Material: 7075 Aluminum
Magnification: 1 x
Magnification Type: Fixed
Objective Window Size: 28x20 mm
Illumination Type: LED
Brightness Settings: 11
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 1 MOA
Optical Coating: Multi-Coated
Battery Type: CR2032
Battery Quantity: 1
Battery Life: 50000 hours
Water Resistance Level: Waterproof
Shockproof: Yes
Fogproof: Yes
Length: 45 mm
Height: 28 mm
Weight: 88 g
Package Type: Box
Red Dot Sights-Footprint: RMR
Condition: New

Features of ZeroTech Optics Thrive HD RMR FootPrint 1x28mm Reflex Red Dot Sight w/ High Mount

  • Green 3 MOA Dot: Enhances visibility and target acquisition, especially in bright daylight; ideal for shooters with astigmatism.
  • Multi Reticle System includes a single 3MOA dot, a 40 MOA circle, and a 3MOA dot combined with a 40 MOA ring for enhanced target acquisition. 
  • Picatinny High See-Through Mount: Permits use of iron sights for greater versatility. Ideal for flat top receivers.
  • Advanced Shake Awake Technology: Auto shutoff and auto ON for instant readiness.
  • Adjustable Brightness: 11 illumination settings to match any lighting condition.
  • Universal Footprint: Compatible with a wide range of firearms and mounting options.
  • Up to 50,000 Hours Battery Life: Long-lasting performance for extended use.
  • Molded Rubber Cover: Offers additional protection against elements and impacts.
  • Waterproof and Shockproof: Built to withstand harsh conditions and heavy recoil.
  • AR Lens Coating: Reduces glare and enhances clarity for a sharp, distortion-free view.

Package Contents:

  • ZeroTech Optics Thrive HD RMR FootPrint 1x28mm Reflex Red Dot Sight w/ High Mount
  • High Riser See-Through Mount for Picatinny
  • Moulded Rubber Cover
  • CR2032 Battery
  • QR code welcome card
  • High-Quality Microfibre Cleaning Cloth
  • Tools for mounting

ZeroTech Optics Thrive HD RMR FootPrint 1x28mm Reflex Red Dot Sight w/ High Mount Orderable Models

List of Orderable Models

  • ZeroTech Optics Thrive HD RMR FootPrint Reflex Red Dot Sight w/ High Mount, 1x28mm, Multi Reticle, Black, THDRS28MH , MPN: THDRS28MH , UPC: 9334046005516 , Code: 4TM-RD-ZTO0306-THDRS28MH
  • ZeroTech Optics Thrive HD RMR FootPrint Reflex Red Dot Sight w/ High Mount, 1x28mm, 3 MOA Green Dot, Black, THDRS28GH , MPN: THDRS28GH , UPC: 9334046000665 , Code: 4TM-RD-ZTO0306-THDRS28GH
Compare (0)
Last updated 2026-09-26 UTC.