Notice (Please read this first):
1. This item runs on 1pc CR123A Batteries which is Not Included. You need to buy them at your Local Shop. Hope you consider it before order.
2. The laser light beam is INVISIBLE and it only results in a red dot on the irradiated object.
Caution: Avoid direct eye exposure to the laser beam. Laser radiation is emitted from the aperture.
Specification:Material: Aluminum Alloy
Laser Type: Red Laser
Laser Wavelength: 650nm
Clear Range: 20~100m
Power Supply: CR123A Battery
Power Output: 5mW
Laser Tube Dimension: 25.4x122mm (D*L)
Rail Mount: 20mm Rail
Battery Installation: Positive side facing outwards (As The Picture Shown).
Features:1. Aluminum Alloy Quality: Made of aircraft grade aluminum, black anodized finish, durable and sturdy.
2. Picatinny Rail & Barrel Mount: Comes with 20mm picatinny rail and 1" barrel clamp mount holder, universally fit most tactical equipments.
3. Accurate Sight: Long distance red dot laser sight, clear and extra bright laser beam. Clear range: 20~100m.
4. Easy to Get Zeroed: Precise and wide range windage and elevation adjustments for most firearms. Simply turn the knob adjust it up or down, left or right.
5. Easy to Use: Comes with both cap pressure switch and attachable remote switch. For the remote switch, you need to keep pressing the button, the laser on; release it, the laser off.
6. Widely used for laser alignment, aiming, positioning, spotting, search, hiking.
Package Included:1 x Red Laser Sight
1 x Picatinny Rail Mount Holder
1 x Barrel Mount Holder
1 x Remote Switch
1 x Wrench
More Details: 
