I bought one for my 4D Maglight and I am pleased with the results. You either need to purchase a trimmed reflector from them or trim your existing one. It is not difficult to trim, but I imagine they are easy enough to break. You will also still get some patterned light (versus a consistent circle of light) since that seems to be due to the reflector.
Originally Posted by Andrew
Still happy with that Malkoff?
I have some D-cell Maglites that could use an upgrade, given I have plenty of Duracell D's in the closet.