[Old Yankee]

New guy looking for a little info.

I have a Colt HBar Elite 24 inch SS barrel, chambered 5.56 Nato 1 in 9 twist. It has a rather unique gas block, the likes of which I and anybody else seems to have never seen before. Local gun shops and gunsmiths have no idea.

I've attached pics and would greatly appreciate information that can be provided if someone has any knowledge they can share.

Thanks