BSA airsporter mk2 part!

[clarky]

Does anyone happen to know what size the rear sight blade retaining screws are on the bsa airsporter mk 2? I know I could get them from John knibs but he’s out of stock at the moment and is reluctant to tell me what size they are ! So I won’t be buying them off him now on principle ..
Any suggestions on where I may acquire some would be greatly appreciated ..

Cheers Dave .

Std. mild steel 10 BA buddy...
Your only problem is it has a semi domed top....more than a cheese head but not Jap ...
ALmost impossible to source....could go a std. cheese and blend it in a pin chuck on the Lathe ...
Let me know if you fail and ill machine you one but it wont be cheap as a real tricky one off ...

[bu dave]

Thanks for the offer Mark and clarky, I’ll let you know have a get on .

Cheers Dave.