Black Eagle Front of Center Outsert System F.O.C.O.S (PATENTED) - Brass weights

These screw-in brass weights fit our 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.

Loctite Purple or Blue recommended