Bring fast target acquisition to your pistol or compact carbine setup with the Leapers, Inc. UTG OP3 Micro Green Dot (OP-RDM20G)—a tough, modern micro reflex sight built for shooters who want a clean footprint, dependable performance, and an easy path to mounting on both optics-ready handguns and Picatinny-equipped platforms. Featuring a crisp 4 MOA green dot, a rugged 6061-T6 aluminum housing with matte black anodized finish, and a removable low-profile Picatinny base, the OP3 Micro is designed to be a versatile “one optic, many setups” solution that keeps your firearm sleek while improving speed and confidence on target. Leapers+1
If you’re searching for a UTG green dot optic, a Docter-footprint micro red dot (green), or an affordable, feature-rich pistol dot that doesn’t feel cheap, the OP-RDM20G is built to stand out.
Fast, Visible 4 MOA Green Dot for Practical Shooting
The OP3 Micro uses a 4.0 MOA green dot that’s easy to pick up quickly—ideal for defensive practice, action-style drills, and general range use where speed matters. The dot offers 8 brightness intensity settings so you can tune it for indoor ranges, bright outdoor conditions, and everything in between. Leapers+1
Docter Footprint Compatibility + Included Low Profile Picatinny Base
One of the biggest advantages of this model is mounting flexibility:
The optic uses the common Docter® footprint (often referred to as Docter/Noblex pattern), making it compatible with many optics-ready pistol systems and mounts designed around that interface. Leapers+1
UTG includes a removable low-profile Picatinny mounting base, letting you install it on rifles, PCCs, shotguns, or any platform with a Picatinny rail. Leapers+1
That “optic-ready pistol + Picatinny rail” versatility is exactly what many shooters want when they’re standardizing their gear.
Built Tough: 6061-T6 Aluminum + Matte Black Anodize
The OP3 Micro is precision machined from 6061-T6 aluminum and finished in a matte black anodization, giving it the durability you want from a carry/range optic while keeping weight low and the profile compact. Leapers+1
Clear Glass and a Big, Usable View
Micro dots should feel “open” and fast, not cramped. UTG highlights a large field of view with a multi-coated glass lens, helping keep the sight picture clear and practical when you’re shooting quickly or transitioning between targets. Leapers+1
Reliable Adjustments + Smart Battery Design
Dialing in your zero shouldn’t be a hassle. The OP3 Micro uses 1 MOA per click adjustments for windage and elevation, giving you straightforward, predictable zeroing. Leapers+1
It also features a magnetized battery compartment designed to help reduce intermittent illumination/flicker and make battery changes less annoying on a compact optic. Battery type is CR2032. Leapers+1
Long Battery Life + IPX7 Waterproof Rating
For an always-ready optic, battery life and weather resistance matter. UTG lists 20,000+ hours of battery life at a mid brightness setting and an IPX7 waterproof rating, making it well-suited to range bags, rainy days, and general “real use” conditions. Leapers+1
Co-Witness Friendly Height + Helpful Backup Reference
UTG notes the optic height co-witnesses with most suppressor-height iron sights, making it a solid option for shooters who want a dot while keeping functional irons as a backup. Leapers+1
There’s also a tertiary aiming point laser engraved on the rear face of the optic hood—an extra reference that can be helpful in unconventional situations. Leapers
What’s Included
This package is built to be ready out of the box with practical add-ons, including a protective optic cover and the removable low-profile Picatinny base. Leapers+1
Product Details for SEO, Listings, and Inventory
Brand / Manufacturer: Leapers, Inc. / UTG
Product: UTG OP3 Micro, Green Dot, Black
Reticle: Green 4 MOA single dot Leapers
Brightness: 8 settings Leapers
Footprint: Docter® footprint Leapers
Mounting: Includes removable low-profile Picatinny base Leapers
Battery: CR2032 MidwayUSA
Waterproof: IPX7 Leapers
Model / Part Number: OP-RDM20G Leapers
EAN/UPC: 4717385555938 Cheaper Than Dirt
Why Choose the UTG OP3 Micro Green Dot (OP-RDM20G)?
Because it delivers the features shooters actually want in a compact reflex: a bright, fast 4 MOA green dot, durable metal housing, useful battery design, waterproofing, and—most importantly—mounting flexibility via Docter footprint compatibility plus an included low-profile Picatinny base. Whether you’re upgrading an optics-ready pistol or adding a micro dot to a rail setup, the UTG OP3 Micro Green is a streamlined, capable optic that brings modern performance without overcomplicating your build. Leapers+1
The End
