Oh, and one other thing. You definitely CAN fit an Igniter Mini into an Apollyon hilt (and therefore, ANY upcoming Saberz hilt, since they all use the same center piece, called the Module, which houses all the electronics). I've successfully installed an Igniter Mini myself, in much the same way that Justin has described the Prizm installs. But I agree with Justin that the better bet is to just use Prizm :-) For one thing, with Igniter Mini, you lose the ability to use threaded ZCS pommels or couplers. This is because the Igniter Mini is longer, and has to take up the space where the Module's pommel threads are. Therefore, you'd only be able to use the sleeve-type pommels (Apollyon, Oracle, Kapulus).