Solves a huge number of problems for all air weapons enthusiasts
Keep the Optical-centre and tilt the lens easily with only one screw
No more problems zeroing your optics
Adjustable approximately 4mm vertically, equal to 4m in height range @ 100m
Eliminates all problem with limits of crosshair movement for long range shooting
Let you use the sweet spot of your scope and fine tune with crosshairs
Easily adjustable for height and angle
Solid locking design