I have another addition to my 03 collection. What baffles me is that the markings and serial number are positioned to that of an A4 and are reduced in size compared to a standard A3. However, the research I've found indicates that all of the "Z" prefix A4's should be in the 4,001,083 - 4,002,980 range. This one is 4,124,411. Whatever this was I'm pretty confident it was rebuilt at some point. The fella I picked it up from said he got it from his father-in-law's collection and couldn't provide any details.
The barrel appears to have had the front sight on at some point. As you can see it was not parkerized underneath and has rusted. I assume this must have been an A3 barrel.
The barrel also has a heart stamp near the chamber.
The bolt has been blued and appears to just be a modified A3 bolt.
The stock is beautiful and doesn't appear to have seen any serious service but has all the proper markings.
The scope appears to be a legit M82.