What size allen wrench to adjust the center shot on a Bear Mag Riser?

[Snakeeater]

Hi folks,

I need to adjust the center shot on my Bear Mag A riser but I don't know what size allen wrench (I assume it is an allen wrench) I need to stick into the offside of the riser to make the adjustment. Can anybody help?            

Thanks,

Larry

[shick]

Larry, my B mag takes a 1/8" allen wrench.
Shick

[yellow bow]

1/8" allen wrench on an A Mag also.

[Snakeeater]

Thanks guys. I just hope that the mechanism inside of the riser still works.

Larry