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Use the Trijicon MRO Lower 1/3 Co-Witness Mount Adapter for mounting you MRO on Picatinny rails. This durable, high-quality aluminum adapter provides a rigid and strong connection for your sight and raises it by 1.66" above the rail.
In the Box
Trijicon MRO Lower 1/3 Co-Witness Mount Adapter (Matte Black)