Get on target fast with the SPARC II. Ultra-compact and lightweight, the SPARC II (Speed Point Aiming for Rapid Combat) is equally at home mounted on an AR-15 or shotgun. Digital rear facing controls for powering on/off and adjusting the 2 MOA daylight bright red dot brightness at ten intensity levels-automatically returning to the last dot intensity used when powered up. Rugged single-piece body machined from aircraft grade aluminum is o-ring sealed for waterproof and fogproof performance. The versatile multi-height mount system accomodates most firearms including AR-15s needing absolute or lower 1/3 co-witness heights, and mounts on standard Weaver or Picatinny bases (not included). A modular three-piece base offers four separate mounting heights for user- and weapon-specific customization: 18.0 mm (.709 inches), 21 mm (.823 inches), 37 mm (1.457 inches), 40 mm (1.575 inches).Includes: Multi-height mount system T-10 Torx Wrench 7/64" Hex Wrench CR 2032 battery Flip cap ...