The Trijicon MRO HD Combo Set brings together the proven MRO HD miniature reflex sight and a full co-witness mount in a complete package that gives serious rifle and carbine shooters everything needed to get the MRO HD running correctly on their platform without sourcing additional components separately. The MRO-C-2200057 is the ready-to-mount solution for shooters who want the MRO HD's enhanced optical performance and the backup iron sight co-witness capability that a full co-witness mount height provides. The Trijicon MRO HD takes the large aperture and tapered light path design that makes the MRO's sight picture so distinctly open and natural compared to competing compact red dots, and improves on it with advanced lens coatings that deliver better clarity and light transmission across the lighting conditions that rifle and carbine shooters encounter in the field. The result is a cleaner, more refined sight picture that the standard MRO cannot fully match, making the HD designation a meaningful performance upgrade rather than a label. The MRO HD large aperture maximizes the viewing area in a way that pays particular dividends from non-standard shooting positions - the wide, open sight picture stays usable and natural even when cheek weld and head position are not ideal, which is exactly the kind of real-world shooting scenario that fast carbine work regularly produces. Ambidextrous brightness controls and sub-flush adjusters keep the controls practical and the profile clean. The Trijicon MRO mount combo set MRO HD runs a single lithium battery for up to 2.5 years of continuous operation — a runtime that removes battery management from the shooter's list of operational concerns. The waterproof, hard anodized 7075-T6 forged aluminum housing handles hard use across any environment. Trijicon MRO HD Features 16 Total Settings Waterproof up to 100 ft Tethered Battery Cap Display Dot Only, Including Night Vision (NV) Setting Battery Life - Up to 2.5 years of continuous use for red dot Display Both Segmented Circle Reticle and Dot, Including Night Vision (NV) Setting Adjustable brightness settings Crisp 2.0 MOA Center-Dot Surrounded by 68 MOA Ring Reticle Trijicon 3x Magnifier FeaturesCompact Design Saves Weight and Rail Space Easy-to-Set Flush Adjusters Waterproof 33 ft./10m Submersion Includes Riser Plate to Work with Both 1/3 to Full Height MRO HD Mounts Quick Release Mount Trijicon 1x25 MRO HD Reflex w/ Full Co-Witness Mount & 3x Magnifier w/ QD Adjustable Height Mount - MRO-C-2200057