Had all of these out today and thought I'd snap a picture.
Top to bottom:
AAC 9" barrel with KAC carbine URX
Centurion Arms 10.5" barrel with FSB and 7.0 Centurion rail
Colt 11.5" barrel with FSB and MOE handguard
http://i134.photobucket.com/albums/q...hoto-20-10.jpg
