TRIJICON BLEM MRO RED DOT REFLEX SIGHT These have been previously installed on firearms. The Trijicon Miniature Rifle Optic (MROA(R)) is a reflex-style, sealed sight intended for use on rifles, carbines, and shotguns to provide fast target acquisition. It is designed to be used with both eyes open, providing the operator with maximum situational awareness. The large aperture and tapered light path maximizes the viewing area in such a small optic, allowing for fast target engagement - especially from non-standard shooting positions. Advanced lens coatings and electronics produce a crisp red dot. The brightness control dial on the MRO is specifically des Mfg: Trijicon