Description
The Trijicon MRO HD Red Dot and 3x Magnifier Combo (2200057) is a complete sealed miniature rifle optic system built from forged 7075-T6 aluminum, delivering a selectable 68 MOA segmented circle with 2 MOA red center dot through a 25mm objective with 16 brightness settings, paired with a 3x quick-detach flip-to-side magnifier and full co-witness mount in a single ready-to-run package. Designed for carbine and rifle shooters who want a complete red dot and magnifier combo for AR platforms with instant 1x to 3x transitions, the 2200057 ships with everything needed to mount, zero, and run the system without sourcing additional components.
Key Features
Part number: 2200057, also referenced as MRO-C-2200057
MRO HD reticle: 68 MOA segmented circle with 2 MOA red center dot, independently selectable
Magnification: 1x red dot, 3x magnifier
Objective diameter: 25mm
Eye relief: Unlimited on MRO HD
Field of view with magnifier: 7.2 degrees
Lens coatings: Anti-reflection broadband multicoated
Housing: Forged 7075-T6 aluminum, nitrogen purged, O-ring sealed
Finish: Matte black, anodized
Brightness settings: 16 total, ambidextrous controls
Night vision settings: Yes, included in 16-position range
Battery: CR2032, tethered battery cap
Battery life: 5 years continuous at medium setting
Adjustment per click: 1 MOA
Total windage and elevation travel: 70 MOA MRO HD, 60 MOA magnifier
Magnifier mount: Quick-detach flip-to-side with adjustable height spacer
Mount included: Full co-witness Picatinny, positions dot with standard iron sights
MRO HD dimensions: 2.9 x 1.7 x 2.0 inches
Magnifier dimensions: 2.9 x 1.5 x 1.7 inches
Combined system length: 6.25 inches
Combined system weight: 12 oz
Water resistance: Waterproof to 33 feet
Made in the USA
Warranty: Limited lifetime
Special Features
The re-engineered objective lens of the MRO HD is purpose-built for use behind a magnifier, producing a refined 2 MOA dot that stays clean and defined at 3x without the dot blur and distortion that standard red dot lenses produce when magnified.
The 68 MOA segmented circle presents three distinct gap sections rather than a solid ring, giving you a cleaner, less obstructed sight picture at 3x while still providing a fast-acquisition outer reference at 1x.
The quick-detach flip-to-side magnifier mount includes an adjustable height spacer that lets you run the system at full co-witness or lower one-third co-witness height, giving you iron sight compatibility across both mounting positions.
Sub-flush windage and elevation adjusters sit recessed below the housing surface on the MRO HD, preventing accidental zero shift from gear contact, rail adjustments, or handling without requiring a protective cap.
Practical Benefits
The instant flip-to-side transition lets you engage close-range targets at 1x with both eyes open, then swing the 3x magnifier into line for positive target identification and precise shots at distance without breaking your position or changing optics.
The 5-year battery life at medium setting on a single CR2032 eliminates battery anxiety on a duty or hunting carbine, giving you years of reliable runtime without tracking usage hours or carrying spare cells.
The complete combo ships with the full co-witness mount, magnifier with QD flip mount, and all necessary hardware, so your carbine goes from box to zeroed without sourcing additional mounting components.
Your 2200057 gives you a purpose-matched red dot and magnifier system engineered to work together from the objective lens outward, delivering sharper magnified performance than any universal red dot and aftermarket magnifier pairing can provide.
The Trijicon MRO HD Red Dot and 3x Magnifier Combo (2200057) is a smart addition for carbine shooters, law enforcement rifle users, and competition builders who want a complete, purpose-matched day and magnified optic system that mounts ready to run and delivers refined 3x performance from a red dot built specifically for magnifier use.
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