I have a Fenix P3d Light and I want to get a clamp that would attach it to my Sig Sauer P226r. Does anyone know where I can purchase a clamp for this purpose? The Fenix P3d is a small gun light. Surefire comes out with a part similiar to what I need. The part number is Surefire M78 EZE4L .8" RING. The diameter of my Surefire light is 6/8". I can get the Surefire from Optics Planet. They do not have one to fit my light! Thank you!