I'm picking up an Inforce APL for one of my pistols for the Labor Day sales.  I'm kinda hung up trying to decide on the AR pistol.  (I ordered 2 APLs, but thinking of switching the one for the AR pistol before they ship).  I see some that have mounted the Inforce APL in front of a FSB and works nicely there.  That isn't an option with my build.  

Inforce WML - 4" length closer to muzzle, activation switch maybe a bit further back than I would like.  Activation switch has better placement.  Also a high/low switch for battery life.

Inforce APL - 3" length preferred, although the activation switch may be a little awkward.  

Pic of build:


Anyone "running" one of the Inforces on their AR pistol or carbine?

I also have the AR pistol with the Sig brace and love it. I had the Inforce and now own the Surefire Mini Scout with pressure switch and like it a whole lot better.

If not mounting in front of the FSB I would go X300(the 170 lumen version is 3/16" shorter than the Ultra) as you would be less likely to activate it accidently.