Aim-O 551 Red/Green Dot

Aim-O 551 Red/Green Dot Metal Construction (Hard anodized surface) Replica of Holographic Red/Green Dot Sight Manual Adjustment Mode offer brightness adjustment for both red/green dot QD Throw-Locking Lever System for fast install / detachment Mount on any 20mm weaver standard rail Easy Hook Up, Install in just seconds Operated by AA battery (Not Include) size: 105x49x64mm