I added a barrel "bushing" to cover the "illegal" threads on my post-ban build.  I simply did not want to permanently mount a compensator.  My result looks very much like a basic crowned post-ban barrel. The photos are here.
HarryD

Thanks, guys for your help!

http://www.imagestation.com/picture/sraid67/pda4c87d512de9d32751bbc3708e51e34/fbcf5175.jpg

http://www.imagestation.com/picture/sraid67/p380c528e844f228db26411841398f6a6/fbcf5050.jpg

http://www.imagestation.com/picture/sraid67/p6d5e1a368848db2de89531a0155298b8/fbcf4f29.jpg

You obviously have an ISP (AOL is not an ISP), then do you have "personal" web space on their public web server?  If so, up load the pictures you want to there then link them to the posts you want.  If not, you'll have to find a "free" picture posting place or someone willing to let you use their space.

The directions for adding images are in the [b]Board Code[/b] section:

Replae the [b][size=4]{ }[/b][/size=4] with a [b][size=4][ ][/b][/size=4] otherwise it won't work.

You can use [url]www.imagestation.com[/url] to host your photos.

^^
Once again, thanks for the help in posting photos for the "Digitally Challenged".