Product parameters:
Model: 2-8x20 collimator
Features: self-locking/external transfer
Magnification: 2-8
Diameter: 20mm
Target diameter: 30mm
Pipe diameter: 25.4mm
Parallax distance: parallax adjustment
Field of vision: < 2000m
Lens: broadband green film
Differentiation plate: Differentiation plate
Cross hairs: red/green light-emitting cross hairs for five gear adjustment
Material: aluminum alloy
Size: 177x55x55cm
Weight: 283g
Battery: CR2032 (included)
Completely
sealed, nitrogen filled, shockproof, waterproof and anti fogging. You
can choose to install in the range of 11mm or 20mm