man, rare to find someone who wants a
longer 1xAA light, my akoray k106 comes in at just under 4 inches, but doesnt have crenellations etc.
The Solarforce L2 should suit you, get the stainless steel tactical bezel to go with it and you're all set, if you dont mind using 18650 cells you could probably get longer runtimes.
Alternatively (this is out of your budget but hey, get a good light that suits most if not all your needs), take a look at
this tactical bezel, which fits
this light or
this light. I own the Pro ST and it's one tough light, it has 3 modes each individually programmable so depending on circumstances, i can program them to suit expected usage.
Say i'm heading to the theatre, i'd have first mode (or maybe even all 3 modes) on minimum to locate seats etc and after the show, i can re-program any of the modes to a higher level to check under the seats if i dropped anything etc.
I also own the Solarforce with that tactical bezel, the teeth are tough and sharp (but not razor sharp) and i have tested it against plaster walls etc with no damage so far (to the light i mean
), one good thing about the Solarforce is that it can take 18650s and/or CR123s/RCR123s. Got mine running a Lumens Factory HO-9 and its a great light.