SIX HOLE RINGS 30MM MEDIUM Manufacturer Model Number: 99693 Manufacturer: Weaver Model: 6-hole Picatinny Type: Accessory-Rings/Mounts/Bases Item Type: Accessory Finish: Black Shipping Weight: 0.4 Feature: 30mm Medium Feature: Clam Pack Packaging Feature: Fits Picatinny Rails Optic Adjustable Objective: false Optic Reticle Illuminated: false