8mm Red Laser Bore Sight
By projecting a laser beam from the center of the barrel axis of firearm, this laser bore sight collimator allows you to instantly & accurately set your sight or scope etc.
The laser light emitted from the laser bore tool travels in a straight line while the bullet follows a trajectory. Even though the use of this device will get you very close, final adjustment should be made at the range.
Weight (net): 31g (1.1 ounces)
Length: 56mm (2.2 inch)
Batteries: 4x AG3 Battery(included)
High quality brass in durable finish
Already set center aligning in factory