Well, we finally added a base to mount on your Picatinny rail. The WTC Picatinny mount is made of anodized 7075 Aluminum and mounts to any Picatinny rail; be it a space gun or AR flat top. No more will you have to suffer with offset zeros, as the WTC Picatinny mount positions your Warner sight over center, on center. Two heights now available (.400 ht or .650 ht), one for Tube guns, one for the AR platforms.