A NIB (New Old Stock) – Steiner OTAL-A Green Laser Aiming Device (ITEM # 9052) that is built to military standards to be attached to rifles. This green laser device has a built in Picatinny mount rail with a quick release lever. Operate via a push button or included remote cable pressure pad for activation. Green laser range = 750 meters on high (at night) and uses 1x CR123 battery (included). This model was recently discontinued and is impossible to find new. Please see additional product details via the back box photo. Additionally, I put the battery in it to reconfirm it works 100% (see photo with green laser on the wall).