Great for break barrel air rifle with severe vibration. - UTG Pro Max Strength Picatinny Rings - Low, Med, High Profile

Bought these to replace single screw rim fire style rings that came with my air gun scope. Their original single screw design and 11mm rail clamp allowed the scope to move and the point of impact to constantly change. I installed a one piece 11mm to picatinny scope mount and the new rings which included ring liners and four screws with each ring these stopped the vibration impact to point of aim that the original rings allowed.