Durable all metal construction
Windage and elevation adjustable (tool included)
On/off cap switch (improved design)
Pressure switch

Specification :

Dimensions: 4.72 (length) x 1.54 (Diameter)
Weight: 150g (4.5 oz)
Power: Less than 5mw
Reaching Distance: 300m
Color: Black
Power: 1 x CR123A (Not included)

Package included:

One green/Red dot laser sight scope with two switches
One hex wrench

Note: there are different mount can be choosed ,please see the pictures measure ,and choose your correct mount ,if any question ,feel free to contact me ,thanks