Been talking with Lothar Walther about this- barrel would have the same exterior specifications as the regular AR207x barrel (meaning it would be missing the sight screw holes found on the regular QB, and have a front-sight divot on it as per a 2078 barrel.

That being said, they would be fully machined to directly replace a stock barrel- but the price is high; $300-ish dollars - so this may be a "no go" (barrels are not blued either). However, if enough people wanted a barrel (10 would be the 'magic' number) in a specific caliber, we could go ahead with it.

The other thing is if people want any of their "generic" airgun barrels, a pile could be thrown in with the same order (price would be around $130.00 I believe)- but these are completely unmachined. Apparently they are all 24" and choked.