I talked to a sales rep. at Walther. I wanted to see if the barrel ould be threaded like the P22 and he said he hasen't even see one yet. Sounds like it may be a while on these..
Shot a couple yesterday. They shot very well. Recoil is a non issue due to grip shape and overall size of the gun (P22 sized).
There is no take down nut so there are no threads on the barrel.