UTG OP3 Micro 4 MOA for RMR

• 4 MOA red dot: The dot is easy to pick up at defensive and general-purpose shooting distances, helping the eye center the aiming point quickly without covering too much of the target.
• RMR footprint with included Picatinny base: The sight fits RMR-pattern mounting setups and also comes with a removable low-profile Picatinny base, making it easier to use on both optics-ready handguns and long guns.
• 55,000-hour battery life: Long runtime reduces battery changes and makes the sight more practical for frequent carry, training, or a rifle that stays ready between range sessions.
• Large multi-coated viewing window: The 23 x 16.5 mm window gives a more open sight picture, while the multi-coated lens helps maintain a clear image and good contrast in changing light.
• Aluminium housing with waterproof, fogproof and shockproof construction: The compact body is built to handle recoil, weather and daily handling, which matters on hard-use handgun and carbine setups.

About the UTG Dot Sights Series

UTG Dot Sights cover a broad range of aiming solutions for both handguns and long guns, with families such as Accu-Sync, OP3 Micro MRDS and ITA addressing different mounting standards and use cases. Within the lineup, the series is built around practical compatibility: some models use the Mini ACOG footprint, while OP3 Micro variants are offered for Docter, RMR and Shield RMSC footprints. That gives shooters a clearer path when matching an optic to an optics-ready slide, a dedicated mount, or a compact carbine setup.

The series is defined by compact dimensions, simple controls and reticle formats intended for fast target acquisition rather than magnified precision work. In the OP3 Micro branch, UTG offers versions with manual illumination, side-loading batteries, and sensor-controlled brightness, so users can choose between straightforward operation and added convenience. Across the family, the design philosophy stays focused on keeping the sight low, light and easy to mount, which is especially important on pistols where slide mass, co-witness height and carry comfort all matter. That makes the UTG Dot Sights range a practical entry point for shooters who want a micro red dot for defensive use, range training or lightweight tactical optics setups.

About the UTG OP3 Micro 4 MOA for RMR

UTG OP3 Micro 4 MOA for RMR is a compact 1x reflex sight built for shooters who want a low-profile red dot on an RMR-pattern handgun slide or a Picatinny-mounted long gun. Its 4.0 MOA red dot is sized for quick acquisition at close to intermediate distances, making it well suited to defensive pistols, range use and lightweight carbine applications where speed matters more than fine holdover detail. Because this is a true non-magnified sight with parallax set to infinity, it supports both-eyes-open shooting and a more natural presentation from the holster or from ready positions on a rifle.

The optic uses manual illumination with adjustable intensity, allowing the dot to be tuned for bright daylight or lower-light conditions instead of forcing a single compromise setting. Its multi-coated lens and relatively generous 23 x 16.5 mm window help keep the sight picture open and readable, which is useful when tracking the dot during recoil or transitioning between targets. The 1 MOA click adjustment gives straightforward zeroing, while the included removable low-profile Picatinny base adds flexibility for users moving the sight between platforms.

Mechanically, the sight is built around an aluminium housing with waterproof, fogproof and shockproof construction, so it is suited to regular field use rather than bench-only handling. At 50.00 g with the mount, it stays light enough for slide-mounted use without adding unnecessary bulk, and the CR2032-powered system offers long service life for a practical, low-maintenance optic.

About UTG

UTG is the brand of Leapers, Inc., a company founded in Michigan in 1992 and headquartered in Livonia, Michigan, United States. Leapers began with a compact 4×28 scope and grew into a manufacturer focused on optics and shooting accessories for hunting and shooting sports. Its product range includes riflescopes, scope rings, mounts and bipods, which gives the brand a strong background in the mounting and interface standards that matter for red dots and other sighting systems.

Over time, the company expanded its optics development capabilities with a research and manufacturing center in Taiwan established in 2018, and it introduced the UTG PRO line of U.S.-made products in 2009. In 2022, Leapers also launched the INTEGRIX premium optics brand. For products such as compact reflex sights, that history is relevant because it reflects long-term specialization in practical shooting equipment rather than a single-category catalog.

Main Features

• Magnification: 1x
• Reticle: Dot
• Dot size: 4.00 MOA
• Illumination: Yes, red
• Brightness adjustment: Adjustable intensity
• Parallax setting: infinity
• Adjustment per click: 28mm/100m - 1MOA
• Lens coating: Multicoated
• Window size: 23 x 16.5 mm
• Battery: CR2032
• Battery life: 55000.00 h
• Mounting standard: Docter Sight
• Integrated mount type: Picatinny
• Length: 48.25 mm
• Width: 28.90 mm
• Height: 26.15 mm
• Weight: 50.00 g
• Housing material: Aluminium
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes

Warranty

10 years. This warranty period gives the UTG OP3 Micro 4 MOA for RMR longer-term support than many entry-level reflex sights and suits a sight intended for regular training and field use.

In the Box

• UTG OP3 Micro, Red 4 MOA Single Dot, for RMR
• Removable low-profile Picatinny mounting base