I ordered four Brinkman 5/3/2 flashlights along with a 5D Brinkman. The 5/3/2 body sections will not fit a standard 5D body. The 5/3/2 body sections are larger in diameter than the standard body. 4 AA cells will just barely fit into the standard 5D body with a lot of force. On the other hand, 4 AA cells slide easily into the 5/3/2 body sections with a little bit of slop. I fit two 5/3/2 bodies together to make a 10D. It looks out of place with the standard reflector/head. Now I've got to figure what to do with it. 
