Our exclusive "C" Adapter is 6" tall and has a reversible machined platform, which offers two different dovetail widths. Use the narrow dovetail with any red-dot finder, such as the dovetail works with the anodized aluminum with stainless steel hardware. Absolutely zero flex with any 1/4-20 threaded binocular - even heavy FFujinons. Purchase with either finder below and save $5.00