NOT KNOWN FACTS ABOUT DAN WESSON TACTICAL HANDGUN

I am watching for shipping and delivery of two "Aimpoint" mounts which had been called DWs. We will see once they get here.Therefore the cylinder is definitely unique.  Perhaps the threading differs from model to model to keep from having the ability to interchance barrels to models?I took a bunch of pics on my mobile phone, but I are unable to ea