This scope is not capable to support Firearms and airguns recoil shocks.
21 mm rail mountingPicatinny mono-mount includedConstruction : Aluminium Black anodizingObjective : 50mmAdjustment : towelsEyes relief : 2-4 in.1 Click : 1/2" MOADot : Red & GreenMounts : 21mm Rail (included)WaterproofShockproofNitrogen Gas : Yes1 reticles