Progressive Barrel question

[Intermision]

Some one gave me a what they called a 10" progressive barrel, but I can't find a 10" one online anywhere. After looking at pics it looks like a progressive, but it's missing the section that has progressive written opn it.

[pgmrandy]

I think they used to make 10" Progressive barrels, but not sure. Ohh well, it doesn't really matter.

[Skunk300]

Some one gave me a what they called a 10" progressive barrel, but I can't find a 10" one online anywhere. After looking at pics it looks like a progressive, but it's missing the section that has progressive written opn it.
Its probaly an older barrel, years ago SP didnt put their names on the barrels.