Just curious, which flashlight/P7 Drop-in combinations are you planning? I know the first is going to be the Streamlight SL20x.
It would appear that the Wolf Eyes Rattlesnake or Eagle 4 series light would make a good sturdy host for a P7 running on 2 or 3 (with extender) 18650 batteries. Any chance of making a P7 to fit into the D36 format of these rugged Aluminum shell flashlights?
A regulated P7 for my M3 running of AW 17500 Protected cells would rock.
I got a Q5 drop in for the M3, a P7 is do-able I think.
Had to open the bezel to remove the old reflector but everything fits great.