X-TAC 30MM RINGS LOW BLK Manufacturer Model Number: 420160 Manufacturer: Burris Optics Model: Xtreme Tactical Rings Type: Accessory-Rings/Mounts/Bases Item Type: Accessory Finish: Black Shipping Weight: 0.35 Feature: 30mm Medium Ring Set Feature: 1/4" Height Feature: Fits Weaver or Picatinny Mount Optic Adjustable Objective: false Optic Reticle Illuminated: false