Gunwerks GRB action

Cobblestone

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Minuteman
Jun 13, 2020
221
39
Mississippi
I have a rifle with a GRB action and it has a two piece rail but it’s a weaver style. I was wondering does anyone know the action is Remington pattern and if it’s 8-40 screws I want to switch it to a pic style rail probably Nightforce or badger.
 
I had the same issue. If I remember right the 20 moa is 2 piece and the 30 moa is 1 piece from them. I tried the vortex rings and they didn’t work but found that the nightforce rings do. Maybe that helps