Turret Caps Weaver FX-4 Turret Cap. Used. PreviousWeaver First Gen K Series Turret Cap. External Thread Round Top NextWeaver Challenger and Marksman Plastic Turret Caps. Weaver FX-4 Turret Cap. Used. Weaver FX-4 Turret Cap. Used. $25.00 Outer diameter: .944”Inner diameter: .82”Height: .875” Quantity: Add To Cart Facebook0 Twitter Pinterest0