H&R sight mount.

[Mustang51]

I posted this on the H&R forum also.

I'm trying to mount a Viani scope mount on one of my M12's and am having difficulty identifying the fasteners that are holding the base on.




The fasteners have a round hole withwhat looks like a start shape in the bottom.

What kind of tool do I need to remove these fasteners?

Thanks

 

[jcwit]

Shortened Easy Out?

 

[Mustang51]

Thanks...T10 Torx got it.