Anyone know a vendor who sells both the e-power 510 spacers and LR 306 atties ? The spacer kit is just a 510-510 extension with a threaded ring used to cover up the threads for the cone on the e-power. I just want the ring so I can cover up those threads while using my 306 DCA. I only know of 3 vendors who carry these and it appears none of those carry any 306 atties. I was hoping to find one vendor who carries both so I don't have to pay shipping twice.