screw cups for AA springers

Mac1 hasn't had screws cups in stock for a year and a half or more. AoA has their version but while brass, not like the Mac1 versions, as they have no sleeve on the backside. Can't remember where I read it so someone with an Air Arms will have to chime in here but aren't the screw holes in the stock beveled inside?? Might make using a set of either a bit difficult if they are I'd think.
 
Mac1 hasn't had screws cups in stock for a year and a half or more. AoA has their version but while brass, not like the Mac1 versions, as they have no sleeve on the backside. Can't remember where I read it so someone with an Air Arms will have to chime in here but aren't the screw holes in the stock beveled inside?? Might make using a set of either a bit difficult if they are I'd think.

Steve, that's was my main concern because of the beveled screw hole