Red Dot Micro Reflex Sight 3 MOA

THRIVE HD RED DOT MICRO REFLEX SIGHT 3 MOA. The latest addition to the ZeroTech range is the ready on demand Thrive HD Micro Reflex sight with advanced shake awake technology to ensure it’s ready to go when you are! Built on the popular Shied RMSc footprint, the Thrive HD Micro Reflex will mount to most compact pistols. It can also be adapted to other firearm platforms and used as an ultra-light weight backup sight.

  • Up to 150,000 hours battery life
  • Shield RMSc footprint
  • Weighs only 19 grams (0.67oz)
  • Moulded rubber cover
  • Auto shutoff and Auto ON
  • Adjustable brightness
  • Guaranteed Waterproof and Shock proof
  • AR lens coating specially developed for the least possible image distortion


SKU THDM21 Category


ZeroTech products are covered for life, any owner, any problem, always covered.
Learn more >>


Thrive HD Micro Reflex Optic (THDM21) by ZeroTech Optics

Introducing the Thrive HD Micro Reflex Optic (THDM21) – a state-of-the-art addition to the ZeroTech range. This isn’t just another optic on the market; it stands as a testament to ZeroTech’s unwavering commitment to reliability, durability, and the incorporation of cutting-edge technology.

Central to the Thrive HD Compact Reflex sight is its advanced shake awake technology. This feature ensures the optic is perpetually ready, eliminating any need for manual activation. Whether you find yourself in a high-pressure situation or are simply enjoying a day at the range, the Thrive HD guarantees it’s primed and ready to perform alongside you.

A significant highlight of the Thrive HD is its unmatched durability. Crafted to endure the most challenging conditions, the THDM21 being recoil-proof, waterproof, and fog-proof. Come rain, fog, or rugged terrains, the Thrive HD remains steadfast in its performance.

With its design based on the RMSc footprint, the Thrive HD Micro Reflex integrates effortlessly with all RMSc compatible firearms and mount interfaces. This ensures users benefit from a broad spectrum of compatibility options, further accentuating the optic’s adaptability.



  • Magnification: 1x with a 21mm objective lens.
  • Reticle: Sharp 3 MOA Red Dot.
  • Brightness Settings: 10 adjustable levels catering to various environments.
  • Durability: Built to be recoil-proof, waterproof, and fog-proof.
  • Battery Life: An impressive maximum of 150,000 hours, powered by a CR2032 battery.
  • Lens Coating: Multi-layered for pristine and sharp visuals.
  • Operational Temperature: Reliable performance ranging from -4°F to + 158°F (-20°c to +70°c).
  • Dimensions & Weight: A sleek design measuring L: 1.6” (40.55mm), H: 0.86” (21.95mm), and weighing approximately 0.67oz (19 grams) inclusive of the battery.
  • The Thrive HD Compact Reflex Optic is more than just a piece of equipment; it’s a pledge from ZeroTech Optics. It promises reliability, unmatched durability, and superior performance tailored for your everyday carry pistol. ZeroTech Optics remains at the forefront of optical advancements, and the Thrive HD Reflex optics exemplify their dedication to meeting and exceeding user expectations.


  • ZT Thrive HD Micro Reflex sight
  • Rubber protective cover
  • Microfibre lens cleaning cloth
  • Hex keys for sight attachment
  • Mounting screws sets x 3


Objective Lens Diameter21mm x 15mm
Reticle3 MOA Red Dot
Brightness Settings10 Adjustable
DurabilityShockproof, Waterproof and Fog Proof
Auto Sleep/ Auto ONYes – Motion Sensor
Illumination FunctionButtons +/-
Battery LifeMax 150,000 Hours
Windage / Elevation Adjustment Range60 MOA
Eye ReliefUnlimited
Field of View (FOV)Unlimited
Lens CoatingMulti Coated
Operational Temperature-20°c to +70°c
DimensionsL – 40mm / 1.5748″ W – 23mm / 0.9055″ H – 22mm / 0.8661″
WeightApprox. 19 Grams (Battery Installed)
WeightApprox. 19 Grams (Battery Installed)
Product ManualDownload PDF
Red Dot White 450


3 MOA red dot

Shopping cart0
There are no products in the cart!
Continue shopping