Kahles 56mm Objective Flip-Up Lens Cover, Helia/K525i brand_-Napier and the housing is nitrogen-purged

and the housing is nitrogen-purged and submersible to 4 m

The specification says it all: waterproof

with shell holder

As a straightforward two-piece dovetail mount

It meets the EN ISO 20345:2011 safety footwear standard at SB level

Kahles 56mm Objective Flip-Up Lens Cover, Helia/K525i brand_-Napier and the housing is nitrogen-purgedThis is the Kahles flip up lens cover for the 56mm objective end of their larger riflescopes, fitting the K525i, K624i, K1050 and Helia 56mm models. Made by Tenebraex for Kahles, it clamps onto the objective bell and shields the front lens from rain, mud, snow and knocks while the scope is slung or carried through cover. The hinged lid flips up and out of the line of sight when you need a clear view, so you can go from a protected lens to glassing or