That is odd.
LCD - 2000 Dark Angel - Warped Sports - Milled by WDP.
However, it would have come with a dual trigger - and someone put on a Single Trigger Dye Frame - and put the board from the Dual inside that.
Then - they took a 'twister' VRA (vertical Regulator adaptor) and a Twister reg and replaced the stock ones (which would have been blue - stock- and look just fine).
The ball detent is also non stock - but Angel Made.
I want to say that the barrel is an ACI 'nitestick'.
I am sure on everything but the barrel.