Bergara Swivel Screw Size

[David Gough]

I'm trying to attach a Spartan Precision universal gun adapter to my Bergara B-14 Hunter, but not of the screws provided match. None I have on hand fit either. They replace the sling swivel at the front of the gun. Anyone have an idea what screw size I should use to attach the bipod adapter?

 

[stevensmith459]

Did you get an answer as I have the same issue with my Bergara BMR?