Castellan Airsoft Scope Red Dot Sight Lens Protector For Picatinny Rail

Castellan Airsoft
Code: AS.Q042
  • Protect Your Optic!
  • For 20mm RIS / RAS Rails
  • 5cm x 5.5cm of protection

This lens protector is a must have product for any Airsoft Skirmisher who intents to play in a CQB environment, protecting your sights and scopes from being shot out by stray BB. Guess what's cheaper: A new sight, or a new lens protector?

Full description


The mount itself is constructed from alloy, making it durable and hard wearing, with a polymer Lens protection section which is clear and can easily seen through no matter the conditions.

The lens protector can quickly and easily be attached to any weapon which features a 20mm RIS / RAS rail, is placed in-front of the scope, and is easily affixed thanks to its screw-less design meaning the item can be hand fitted quickly in the safe zone if required.

The set comes with one unit completely built, and comes packaged with an additional cover which can be easily replaced if your first one becomes broken or damaged. To replace the lens cover simply an Allen key to remove the two front bolts, swap out the plate, then screw back into place.

This product is a must have for those unlucky Airsoft Skirmishers who seem to get their sights and scopes shot out the moment they step into a CQB environment, or for those who have dipped serious money into a high quality scope and would prefer a cheap piece of plastic to get shot out rather than an expensive objective lens.


  • Protects sights and scopes from incoming BBs
  • Designed to fit on 20mm RIS / RAS rails
  • Can be flipped up / down depending on your application
  • Tool-less fitting onto RIS / RAS rail
  • 5cm x 5.5cm protective area
  • Sits 2mm above the rail

Package Includes:

  • 20mm RIS / RAS Adaptor
  • Clear Perspex Lens Protector [1 x fitted]
  • Clear Perspex Lens Protector [1 x Spare]



External Part Type
Cover, Lens Protector,
Package Includes
1 x Spare Lens Protector


Construction Icon

Weight and Dimension

Product Height
Approx. 5.8cm
Product Length
Approx. 3.4cm
Weight KG Icon
Weight (KG)
Approx. 0.08kg

Part Specific

Rail System Icon
Rail System
20mm RIS / RAS

Mount Specific

Mount Type
Sight Mount

Cover Specific

Cover Type
Sight Cover