I almost bought one of these but got browned off when I saw they wanted a premium price for the 1:7 twist.
This is purely speculation and I admit there might be a perfectly rational explanation but without such information offered proactively I jumped to this conclusion...
It had the stench of something awry that they might be charging for the cost of a replacement 1:7 barrel and keeping the original 1:9 barrel to sell to us later. If that's what they're doing then we should get both barrels, since we're paying for both.
There's just no good reason why one barrel twist rate would cost different than another,
I've been in touch with Wolverine for years trying to get a nice 1:7 semi in 223 and when they finally got one... it had stink on it, and I just gave up.
I could have bought a Tavor, (which has a 1:7) but wanted something more traditional...although the X95 is attractive.
So instead I bought a Bushmaster ACR DMR. I don't think its as nice of a rifle as the B&T but it will do.... besides.. the Bushy 1:7 didn't cost extra.
Who knows... maybe a couple years from now I'll find a BT in EE for less.