This started as an old school SureFire X200A and was modified by Scott Clawson (custom house Milkyspit) about a decade ago. The TIR lens was changed out for a smooth reflector. This has a very bright smooth beam, probably about 150 lumens or so.
I don't know what most of the technical terms are for the upgrades and modifications, but Scott always documented his stuff quite well. There's a decal wrapped around the light with the text:
"SSCP4 USWOH IMS20 SOB1000" which I think refers to the type of LED, reflector, and driver/circuit board.