Joe.....ARH has piston and breech seals and springs for the Diana75, Vortek also has the piston seals for the D75. Pyramyd Air has some parts for the Diana 75 and the Diana 100's. The next time I have one of my D75's apart I am going to try the Vortek "O" ring seals in it, we'll see how that works.
I like the FWB300S but the Diana75's seem to get me better groups....and besides....the rubber eye cup on the aperture doesn't come back and bump my glasses with the D75. When you get the timing right on the Diana75's it is almost like a "negative" recoil when you release the shot....it is really difficult to explain the feeling of the shot cycle....you hear a bunch of noise radiating up through the stock but you don't feel anything!
ART
I like the FWB300S but the Diana75's seem to get me better groups....and besides....the rubber eye cup on the aperture doesn't come back and bump my glasses with the D75. When you get the timing right on the Diana75's it is almost like a "negative" recoil when you release the shot....it is really difficult to explain the feeling of the shot cycle....you hear a bunch of noise radiating up through the stock but you don't feel anything!
ART
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