E1 dc1 in this pic it is non samuri triger
E1 dc2 " THIS IS NOT AN E2!" has got samuri trigger tho
And then what you should have budgie E2 dc2
the easyest way to tell them apart ( the frames that is) is by the location of the trigger pin e1 and e2 frames are different here. The sealed soloniod cover could be easy to change but the bolt pin is not.
hope this helps budgie sorry if pics are dire but off the web!
not sure about the inclusion of the intergrated bevertail but you will definatley be able to tell from the pins
dc1's came as e1
dc2 came as e1 and e2
depends if he listed it as an e1 zero b or a e2 there seems to be quite a lot of confusion on this issue on the for sale threads as people selling an "e2 zero b"which are achualy an e1 frame with zero b board. NOT an e2