Black Eagle F.O.C.O.S. Brass Weights 30 Grain
These screw-in brass weights fit the F.O.C.O.S retention Posts. These weights are for fine adjustments available in 10, 20, and 30 grains and are stackable for those looking to maximize F.O.C. The Allen Head is 3/32 and they must be installed With the Retention Post for now.