From what I see on Billhags ref pics in the ESB EIB requirements is that the D ring mount should be removed.
Are you saying that this is not the case then as I have just sawn off said D ring mount, front bayonet cap, and mag housing parts on my ANH blaster as the pic shows all the things to do to configure a blaster to ESB status.
I just want to get the blaster as accurate as possible...
Cheers guys..