Other Details Manufacturer: Silencer Co Manufacturer Part Number: AC4741 Adjustable Objective: False canDropship: True Color: Black Drilled and Tapped: False Finish: Oxide Illuminated Reticle: False Model: Charlie NFA Thread Pattern: 11/16x24 Product Type: Accessory-Silencer Accessories Scope Cover Included: False Series: Direct Thread Mount Thread Pattern: 11/16"x24