We mentioned this a year ago but I’d say that it’s worth bringing up again.
The Tenebraex Weapon Sight Polarizer offers a practical solution to the issue of glare when using a weapon mounted scope. Unlike other polarizer filters that mount to the front of a scope, potentially shifting the point of impact, the Weapon Sight polarizer uses a rotating polarizer that mounts to the rear of the scope. Additionally, the Polarizer can also be quickly and securely flipped up and out of the way when not needed. Constructed from Santoprene which combines the strength of plastic with the flexibility of rubber, it weighs only 1.3 oz. It incurs a modest scope length increase of .82″.
Two models exist, the LSU and STZ, allowing for mounting on a variety of scopes from the following manufacturers: Leupold, Schmidt & Bender, Unertl Tactical, Kahles, Springfield Armory, Zeiss, Trijicon, and Nightforce.
The Tenebraex Weapon Sight Polarizer is available from ustacticalsupply.com/weaponsightpolarizer