I have one of his (woouulf's) other HH offerings on my Hammer 7, and it fits my Mofo barrel perfectly. I believe it is old stock, but still up to spec. I wanted to get one of his sets for my Vibe, but the Vibe has not yet convinced me that it is worth even that small investment.
It's a great deal if you want to try a HH barrel. The 14" length is a very good all around length for the HH also.
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