Nuprol 40mm Sunshade
NUPROLs Sunshades are designed to screw straight onto your chosen optic, over the object lens. The extended shading they provide reduces light from all other sources except what is in your sights, significantly improving clarity and reducing lens glare.
The Sunshade also offers some protection from incoming BBs due to restricting the target field for your enemies on your Optic, however incoming fire from straight ahead can still damage your Optic, get a NUPROL Killflash or Lens Shield for complete protection.
The Sunshade is threaded at both ends, so can be used in sequence, or with the same diameter Killflash fitted to the end.