Argo, Thanks for the info. In regards to the gun, I neglected to mention that it has the toplever stop,which is very unusual, and the Helico grip is a kind of combination of a Purdey underbolt and a barrel extension on top and bottom of barrels, if that makes sense. It seems immensely strong, and I kind of wonder why other makers didn't use it.The bottom barrel extension sits right below the ejector legs and is locked by a lug that operates off of the toplever spindle. Super strong setup,but must have been a bear to fit. Regards, Sandlapper