The ZeroTech 4″ Sunshade threads directly into the objective of your Zerotech 50mm riflescope. A sunshade can greatly reduce glare experienced by the shooter, especially when the sun is low on the horizon.
Fits the following models:
VENGENCE
Click here to download the ZeroTech Lens Cover Removal Instructions.
$39.95
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50mm Objective Sunshade for VENGEANCE 4-20X50 
This is extremely well made and has fulfilled it role to reduce the glare when shooting at low sun level.
Awesome add on.