LaRue Tactical ACOG RCO Mount Black. The contoured aft-section allows easy access to charging handle. This mount was designed specifically for the Trijicon ACOG RCO (Rifle Combat Optic) but works with all ACOG models. The mount comes complete with replacement mounting screws with wrench QD adjustment wrench vial of blue Locktite and Instructions. ACOG is a registered trademark of Trijicon Specifications for LaRue Tactical ACOG RCO Mount: Manufacturer: LaRue Tactical Color: Black Red Dot Sights-Footprint: Not Applicable Optic Cut: Not Applicable Condition: New Package Contents: LaRue Tactical ACOG RCO Mount LaRue Tactical LT681: ACOG RCO Mount Black