The drawings are BAe property??? Well, that explains a lot. I never got a clear answer, but was led to believe that it was Nottingham SAF who held the copyrights so, by extension, H&K.

Really, what I'm looking to find on the original drawings are the machining tolerances, as well as some of the minor details like the muzzle crowning. I've got measured dimensions on both ends of the taper, as well as at the diameter of the parallel section the frontsight block is fitted on, so let me ask, your view is that should be enough?