X-TAC A-BOLT 2PC BASE BLK Manufacturer Model Number: 410625 Manufacturer: Burris Optics Model: Xtreme Tactical Base Type: Accessory-Rings/Mounts/Bases Item Type: Accessory Finish: Black Shipping Weight: 0.15 Feature: 2-Piece Base Set Feature: Fits Weaver or Picatinny Rings Feature: A-Bolt Optic Adjustable Objective: false Optic Reticle Illuminated: false