ABOUT DAN WESSON UPGRADE PARTS

I am waiting for shipping of two "Aimpoint" mounts which were referred to as DWs. We are going to see once they get in this article.Furthermore, it has a 2 line roll marked shroud also. I understand they transitioned to 1 line roll mark barrels, so it's possible it is a changeover gun or 1 pieced with each other around time?I took lots of pictures