Dierks Anchor Arms › Dierks Center Mount Anchor Arm With FM-6 Pulley Image 1 of 1 Dierks Center Mount Anchor Arm With FM-6 Pulley $137.95 Dierks Center Mount Anchor Arm With FM-6 Pulley for Bo's type system.AR1FM6 Quantity: Add To Cart Added! Dierks Center Mount Anchor Arm With FM-6 Pulley for Bo's type system.AR1FM6