Trijicon RMR/SRO Full Co-Witness Mount w/ Trijicon Q-LOC Technology Black. This Return to Zero mount boasts a low weight and low profile design compatible with any Picatinny rail. Designed specifically for the Trijicon RMR. This lightweight Full Co-Witness mount is perfect for mounting the RMR or SRO on any rifle platform with a Picatinny rail. The AC32074 provides a Full Co-Witness with backup iron sights. This means that the RMR/SRO is mounted at the same height as the iron sights. The optic's aiming dot will appear at the top of the iron sight post. This mount is typically used with flip up iron sights. Distance From Top of Mounting Rail to Optical Axis: RMR: 1.384in SRO: 1.625 NOTE: Torque Spec (to rail): Spring Tension Only: 12-16 in. / lbs. Can be Tightened To: 44-66 in. / lbs. Specifications for Trijicon RMR/SRO Full Co-Witness Mount w/ Trijicon Q-LOC Technology: Manufacturer: Trijicon Color: Black Finish: Matte Black Anodized Fabric/Material: 6061-T6 Aluminum Red Dot Sights-Footprint: RMR Length: 1.8 in Width: 1.7 in Weight: 2.2 oz Condition: New Included Accessories: 1x Installtion Booklet 1x Hex Key 4x Screws Package Contents: Trijicon RMR/SRO Full Co-Witness Mount w/ Trijicon Q-LOC Technology 1 Mount 2 Optic Mounting Screws 1 Hex Key Trijicon AC32074: RMR/SRO Full Co-Witness Mount w/ Q-LOC Technology Black