Manufacturer Model Number: 410688 Manufacturer: Burris Optics Model: Speedbead Mount Type: Accessory-Rings/Mounts/Bases Item Type: Accessory Finish: Black Shipping Weight: 0.2 Feature: Fastfire Vent Rib Mount Feature: Adapters For Multiple Widths Optic Adjustable Objective: false Optic Reticle Illuminated: false