Quick view Compare Ade Advanced Optics AR15/308 Absolute Co-Witness Riser HIGH Mount - Compatible with Trijicon RMR/SRO, ADE Stingray, Holosun 407C/407A3/507C/508T/HE509T, Riton X3 Tactix PRD,Trijicon RMR/SRO, Swampox Kingslayer/Liberty/Justice Red Dot Sight + 2 reviews MSRP: Was: On Sale $22.98 Add to Cart