I am not sure who supplies the barrel blanks but it's a much heavier profile.
I am looking at a 12.5" or 14" barrel to shorten up a Wingmaster I have at home.
If I can say this, I only have one issue with having such a short barrel. That is you are limited with only that size due to the shorter arms. If I would do it again I'd go 12.5 or 14 inch and install a pistol grip on it. More rounds in the tube and far more options. I'm only saying this because I have an 8.5 inch. I like having both.
If you don't have one yet you will need one in your collection but you may sway to build another after that and have a few for many uses.
I can't say enough positive regarding Dlask and their product.