Class 1 Eye Safe Operation Green Laser Powered by: One AA Battery (Not included) Quick Release HT Mount Fully Adjustable Windage / Elevation Remote Cable Pad Activation Momentary or Constant On Operation. Offset Tactical Aiming Laser-Classic OTAL-C IR / Green Laser Sight w/QD Mount. OTAL-C IR / Green Laser. The OTAL-C is the “classic” version of this offset tactical aiming laser. It mounts behind the front sight and the laser is offset to project around the front sight. The compact design minimizes weight and the low profile makes it easy to mount in front of scopes, holographic sights or night-vision devices. Class 1 Eye Safe Operation. Powered by: One AA Battery. Quick Release HT Mount. Fully Adjustable Windage / Elevation. Remote Cable Pad Activation. Momentary or Constant On Operation. If you do not receive your item on time, please firstly go to your local post office to check if the package is left there. It happens sometimes when the receiver is not at home. Return without notice is not acceptable. If items defect after 30 days, you can still send it back to us. We wil do our best to deal with all issues you asked.