Hop Up Version with High-powertelescope and Infrared rangefinder.
You can choose to install both of them or other Scope by yours need.
Infrared rangefinder can irradiate the light and infrared.(3 Batteries of 1.5v(AAA))
Two Rear gallus rings can let you to use two point sling.
 
Specifications :
Color : Black
Length : 500mm

Shooting Mode : Bolt Action
Blow Back : No
Power Source : Bolt Action
Inner Barrel Thread Diameter : 11mm
Magazine Capacity : 43rds
Bullet Type : 6mm BB
Power (Muzzle Velocity) : 300-330fps
Weight with Box(Gram) : 1335
Manufacturer :BISON