Some of the best stuff you can get for your VSR or VSR clone.
I have one of there barrels for my Bar. And all I can say is WOW. I am kind of wishing now that I would have gotten the ported version. But hey ... not much I can do now.
Give them a call and talk to one of the guys there. They have great customer service. They are very helpful and not bothered about you calling and asking questions.