N/A Diana 75 front sight

[beerthief]

I have a Diana 75 and cannot sight in the diopters , maybe the front sight is very high ? from the center of the bore to the center of the front tunnel is 35 MM . I have the rear sight all the way up as far as it will go . Maybe i should take it to Hickory in a few weeks , might find the correct sights ?

 

[Motorhead]

They made 2 heights ... most had the LOW, where as the "HV" version came with both Low and High "FRONT" having the rear sight using a RISER rail when used with a high front.
If mismatched Low / High indeed your sighting plane would not be correct.

This shown is a "HIGH" front ( My 75HV )
The HV with the riser rail on rear to be used with a high front.

 

[Chuck-in-Ohio]

If your front sight is 35 MM centerline to centerline, then that is the high front sight.

If there is no riser under your rear sight, you will need a 10 MM rear riser to level up your sight plane.

Or look around for a Diana 75 HV rear riser.

 

[marflow 777]

so, first off is it a model75 or a model 75 T01
the model 75 or Beeman 400 has the sight that is soon above
there was a HV in the early and late versions was a U both had rear diopter risers but the model 75 had a fixed front sight as a unit and the T01 has i riser
now risers can be found as a set and they would work on the T01 but the early one will take some looking they make them and they are not cheap
so again a picture would have made this a little easier
https://oberleenterprises.com/product-category/sighting/risers/