American Defense Mfg., Mount, Quick Detach, Fits Trijicon MRO, Lower 1/3 Co-witness Height Trijicon MRO Mount Uses Patented QD Auto Lock Lever System Does Not Require Proprietary Tools For Adjustment Can Be Adjusted With your Finger / Flat Blade Screwdriver Lever Can Be Configured To Lock To Either Front / Rear Superior Clamping Surface to Insure Maximum Rail Engagement CNC Machined from 6061 T6 Aluminum Hard Coat Type 3 Mil-Spec Anodized Finish Fits both In Spec and Out Of Spec Picatinny Rails ADM MFG LLC Manufacturer Lifetime Warranty Made in the USA Matte Black Mount Specifics: Lower 1/3 Co-Witness Mount Height Standard Lever Style Fits: Trijicon MRO and similar pattern Optic Footprints