Great barrel, great customer service - V Seven 300 AAC Blackout Stainless Match Barrel

I have the 8.25" for my blackout build and it's a great barrel. The finished is very uniform and the quality seems top-notch. It was a snug fit into my upper and the M4 feed ramps were aligned almost perfectly with my upper's. I purchased an adjustable gas block so I can't comment on the supplied on fitting with various handguards. It's easy enough to buy a new gas block if the supplied one doesn't work, just get a set-screw or clamp-on style and you're good to go.
I also contacted the company on a few occasions with various questions and their replies were quick and to the point; gave me the exact info I was looking for.