I got my E1 today early this morning.
As i have not shot this marker yet I cant say how it feels or anything.
Overall presentation of the how it is packaged is considerably nice for a low end marker with this price tag. Has the nice box carrying case with a handle and foam that holds in it place for you.
The feel of a marker is huge for people and this one is really comfy to hold, and at the same time is super compact and small.
Regulator and trigger guard are really close.
Grips are like always and top notch like the rest they have put on other marker with an aluminum plate on the inside of them.
Trigger feels really nice I think. Quick and snappy, spring operated. It has 3 adjustments, Post travel, Pre-travel, and micro-switch activation point.
ASA is an on/off and is part of the frame, not able to be replaced.
Feed-neck is as most have guessed and has 2 o-rings in it to retain the loader, this however I think is a lot easier than how the Ion's 3 o-rings were. You can get the loader out fairly easy though it still holds it sturdy in place for play. (I switched mine out with my Threshold as i bought a new one for that)
It does come with the only 3 allen keys you need to work on it at all, it comes with a barrel condom, also more spare o-rings than i thought it would.
Compatible parts from older models are:
G3 boards with a micro-switch. red solenoid, eyes, detents (sprung kind).
Dangerous Power also has an upgrade board on their site for it. The board has all the functions of the Spec-R/G4 board..
With the great regulators that DP makes for their marker this will have great air-flow and if you notice in the pics it is the G3 regulator with a SPec-R top making it slightly shorter than some older models.
The Bolt system is identical to that of a G3 except for the fact that the back-cap is lengthened a little due to the non-milling in the back portion of the chamber.
please disregard the feedneck on the box.
Side by side to Spec-R
Also my apologies for the bad pics guys. They are from my Cell.
Sorry its just a link guys but it wont add it here..