Save yourself some money down the line...
Here at Patrol Base we sell a selection of Lens Protectors desgned to it infront of Sights and Scopes to revent them becoming damaged should a BB hit them. It is always easier to replace a protector than a more expensive sight.
If you can't find something that you like, or want something which isn't on the website why not contact us via Phone and we can do our best to source it for you!
Telephone: 01484 644709