UTG® OP3 Micro SL, Red 4 MOA Single Dot, Side Loading, for DOCTER®


UTG OP3 Micro SL, Red 4.0 MOA Single Dot, Side Loading, for Docter 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.

OP3 Micro: Battery Life in Years, IPX7 Waterproof, Green or Red 4.0 MOA Single Dot Models, Docter® or RMR® Footprint OP3 Micro SL: Battery Life in Years, Side Loading Battery, IPX7 Waterproof, Red 4.0 MOA Single Dot, Docter® Footprint

OP3 Micro SL: Battery Life in Years, Side Loading Battery, IPX7 Waterproof, Red 4.0 MOA Single Dot, Docter® Footprint

OP3 Micro SLS: Battery Life in Years, Side Loading Battery, Automatic and Manual Brightness Modes, IPX7 Waterproof, Red 4.0 MOA Single Dot, Docter® or RMR® Footprint

OP3 Mini Micro: Constant-on, Automatic Brightness, IPX7 Waterproof, Red 3.0 MOA Single Dot, Single Stack JP® Footprint

  • Precision Machined from 6061-T6 Aluminum and Finished in a Matte Black Anodization

  • Red 4.0 MOA Single Dot with 8 Brightness Intensity Settings

  • Side Loading Battery Compartment, No Longer Necessary to Remove Sight and Re-zero when Replacing Battery

  • 15,000+ Hours Battery Life at Middle Brightness Setting

  • 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 Docter 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 and All UTG® RDM20 Mounts

  • CAUTION: Only use the included #6-48 screws for optic installation.

  • NOTE: We recommend to tighten the #6-48 screw with torque value of about 12 inch-lb and the side plate screw with torque value of about 35 inch-lb.


Target Dot reticle consists of a single floating dot in the center as the aiming point with the least visual distraction. It is commonly used for quick aiming applications with lower demand for pin-point accuracy. The shooter aims by pointing the dot at the target. For a reflex dot sight based on light reflection, the sight usually does not have magnification and there is an unlimited eye relief. The dot is a reflected image of the light source with common characteristics from any light reflection, including possibly slight flare and fuzziness of the dot.


History, development, & technology

TS, as in True Strength®, is the signature scope construction platform of Leapers UTG® optics. As the name suggests, no matter if it's a full size or compact scope, magnifier or dot sight, we aim to achieve the highest dependability starting at the heart of our scopes' structure. The research and development of this innovative structure was initiated in 2001 and in 2002 the first TS Platform scope was put into mass production. With our continuous testing, verification, and multiple rounds of improvement, we started promoting and selling TS optics on a global scale in 2005. Today, all our optics are built on the tough TS Platform to include a one-piece integral aluminum main tube, meticulously placed reinforcements at key structural points, and nitrogen purging to achieve optimal rainproof, fogproof, and shockproof performance even in the most challenging of scenarios. This superior TS Platform has even been adopted into the lineup of UTG® laser products, giving them precise and secure adjustment.


  • The Smart Spherical Structure (SSS) is one of the most significant characteristics of the TS Platform.
  • SSS simulates the human joint structure to achieve the utmost precision and reliability.
  • The erector tube is constrained via a ball and socket structural relationship, which provides the desirable flexibility to respond to windage and elevation adjustments and the optimal ability to hold zero under heavy recoil.


  • Reduces and Absorbs Recoil, Alleviating Potential Loss of Zero
  • Fully Tested on Both Air Rifles and Firearms
  • TS Technology Implemented in Every Leapers Scope


  • The Most Advanced and User-friendly Windage and Elevation Adjustment System with Innovative Design, Precision Components, and Disciplined Assembly
  • UTG®'s Leaf Spring System is Made from a Special Heat Treated Beryllium Bronze Alloy to Maintain Reliable and Consistent Long Term Tension
  • ACCUSHOT® Models Equipped with a Rugged Coil Erector Return Spring System For Improved Zero Hold Under Heavy Recoil and Greater Windage/Elevation Adjustment Range


  • CR1632 3V High Energy Lithium Battery
  • M3x0.5 T10 Torx Screw, 7mm X2
  • #6-48 T10 Torx Screw, 7mm X2
  • T10 Torx Wrench
  • Allen Wrench 3mm
  • W/E Adjusting Wrench
  • Protective Optic Cover
  • Cleaning Cloth
  • User Manual


More Information
Materials6061-T6 Aluminum
Parts Included#6-48 T10 Torx Screw (7mm), Cleaning Cloth, CR1632 3V High Energy Lithium Battery, Hex Wrench 3 mm, M3x0.5 T10 Torx Screw, 7mm, Protective Optic Cover, T10 Torx Wrench, W/E Adjusting Wrench
Waterproof RatingIPX7
ReticleSingle Dot
Reticle Color(s)Red
Illumination Toggle TypeButton
Brightness Mode(s)Manual
Battery TypeCR1632 3V
Battery Life (hrs)15000
Battery LoadingSide
Click Value1 MOA
Eye ReliefInfinity
Lens MaterialGlass
Optic Footprint For DOCTER®
Weight (oz)51 g / 1.8 oz
Height (in)17 mm / 1.02 in
Length (mm/in)46 mm / 1.81 in
Width (in)34 mm / 1.34 in
Window Size (in)23 mm x 17 mm / 0.89 in x 0.68 in
1CR1632 3V High Energy Lithium Battery1
2M3x0.5 T10 Torx Screw, 7mmx2
3#6-48 T10 Torx Screw, 7mmx2
4T10 Torx Wrench1
5Allen Wrench 3mm1
6W/E Adjusting Wrench1
7Protective Optic Cover1
8Cleaning Cloth1
9Dot Sight Owners Manual1


Leapers, Inc. warrants that all products conform to published specifications and are free from defects in material and workmanship. Leapers, Inc. will repair or replace, at our discretion, a defective product for the duration of the product’s lifespan. In the event of a product being discontinued, credit for the product’s MSRP may be offered.

⚠️WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.