EOTech 552 Holographic Red Dot Sight Black 68MOA Ring with 1MOA Dot AA BatteryEOTech 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 oz Item Category Code: 4000 Product Group Code: 4000L Product Sub Group 1: 4000L1