EGW told me thair rail that came from the factory is a 20MOA rail. I haven't bor sighted to check yet. I'm waiting for new screws for the rail. I'm also going to swap the steel rings for the allow, because i'm not going to use a steel rail.
I believe it is a large shank. The barrel nut measures 1.30"
The bolt diameter measure .695"
The lugs measure .987 perpendicular to the bore axis.
The action measure 1.350" in diameter.
The accu-trigger, at its lightest setting, breaks just over 1.5 lbs. (5 pulls 1-8 to 1-9) It isn't as consistant as some of my better triggers. It feels good, but not as good as my timney.
Here are some pics
It wears an IOR 6-24x56 MOA/MOA