EOTech 552 Holographic Red Dot Sight Black 68MOA Ring with 1MOA Dot AA Battery Quick-detach lever compatible with 1"" Weaver and MIL-STD-1913 rail.;AA: 2,500 continuous hours at setting 12 at room temperature.AA alkaline: 2,200 continuous hours at setting 12 at room temperature.;20 daylight settings with 10 night vision settings;Water-resistant to 33 ft;11.5 oztable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 4000 Product Group Code: 4000L Product Sub Group 1: 4000L1 Inactive: No