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UTG OP3 Micro Red Dot Sight 4 MOA OP-RMR20R



4 MOA Red Dot

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UTG OP3 Micro Red Dot Sight 4 MOA OP-RMR20R

UTG OP3 Micro, Red 4.0 MOA Single Dot, for RMR Footprint

Just like optics on long guns being common place, pistol mounted optics are on their way to becoming one in the same. With the benefits being obvious and handguns being the primary option for on-the-go and on-your-person defense, UTG OP3 Micro reflex dot sights are your next choice in reliable and affordable pistol mounted optics with different models tailored to the unique needs of various shooters.

  • Precision Machined from 6061-T6 Aluminum and Finished in a Matte Black Anodization
  • Red 4.0 MOA Single Dot with 8 Brightness Intensity Settings
  • 55,000+ Hours Battery Life at Middle Brightness Setting
  • Magnetized Battery Compartment Reduces Intermittent Reticle Illumination and Flicker
  • Crisp 1 MOA per Click Adjustment
  • Large FOV Multi-coated Glass Lens
  • IPX7 Waterproof Rated
  • Includes Removable Low Profile Picatinny Mounting Base
  • Mounting Base Interface Uses the Common RMR Footprint
  • Optic Height Co-witnesses with Most Suppressor Height Iron Sights
  • Tertiary Aiming Point Laser Engraved on Rear Face of Optic Hood
  • Protective Optic Cover Included
  • Compatible with Most Optics Ready Pistol Systems

Only use the included #6-32 or #4-40 screws for optic installation.

We recommend to tighten the #6-32 or #4-40 screws with torque value of about 12 inch-lb and the side plate screw with torque value of about 35 inch-lb.


  • Length (in): 1.81
  • Length (mm): 45.212
  • Width (in): 1.18
  • Height (in): 1.02
  • Height (mm): 26.42
  • Window Size (in): 0.951575
  • Window Size (mm): 24.17
  • Warranty: Lifetime
  • Materials: 6061-T6 Aluminum
  • Color(s): Black
  • Parts Included: #4-40 T10 Torx Screw, #6-32 T10 Torx Screw, Cleaning Cloth, CR2032 3V High Energy Lithium Battery, Dot Sight Owners Manual, Hex Wrench 3mm, Protective Optic Cover, T10 Torx Wrench, W/E Adjusting Wrench
  • Waterproof Rating: IPX7
  • Reticle Color: Red
  • Illumination Toggle Type: Button
  • Brightness Mode(s): Manual
  • Battery Type: CR2032 3V
  • Battery Life: 55000 hours
  • Battery Loading: Bottom
  • Click Value @ 100 Yards: 1 MOA
  • Parallax: Infinity
  • Parallax: Infinity
  • Lens Materal: Glass
  • Optic Footprint: RMR
  • Optic to Mount Torque Value (in-lb): 12
  • Mount to Rail Torque Value (in-lb): 35
  • Weight: 1.1 oz / 31.2 g


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UTG OP3 Micro Red Dot Sight 4 MOA OP-RMR20R

UTG OP3 Micro Red Dot Sight 4 MOA OP-RMR20R

4 MOA Red Dot

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