I have been looking for a good smooth reflector for my mags, especially one that would work well with a 20mm star. Mind sharing your source? is it this one perhaps… http://www.fasttech.com/products/1617/10001275/1208513-plastic-smooth-reflector-for-cree-xr-e-emitters
I use these two
One is shallow, one is deep. Both of them need to be "fitted" to a Maglite. The stock LED "D" Maglite reflector is good for a thrower.