Hawke Red Dot Sights Vantage RD 1x30, Weaver (3 moa dot) 3 MOA red dot with 11-stage digital brightness control 25 layer Multi-Coated optics for maximum clarity Fixed focus Weaver rail Integrated mount - ready straight from the box Parallax error free from 10 yards/9 meters Ideal for use on pistols, ARs and hunting rifles High-quality aluminum construction Weight: 8.1 oz. Nitrogen purged - water, shock and fog proof All-caliber rated Hawke two year warranty