Quote Originally Posted by Drew451 View Post
Very nice. I was leaning towards Geezers viewpoint from your description but that is the earlier model. I think there was some overlap in models around that year.
Possibly earlier actions still around by the time later stocks coming in. I have one of each type, both dated 07 74. Identical actions in different stocks.
Clearly, as with most makers, there were some “transitional” models with a mix of old and new features.

My guess (guess) would be that Diana decided to introduce the metal sight with the new stock, but still used up their inventory of earlier stocks with it for a little while. The plastic sight was still being used into the 80s on the 5 and 6 pistols and the 25 rifle, so there would have been no imperative to keep using it on the 50.

I’ve only had one 50, a post-76 square stock model and TBH I’ve not been that impressed with it. On the other hand, 70s Airsporters are pretty unimpressive too, and the Webley Mark III was out of production in 75, so there wasn’t much competition.