Handy and light - Leupold Mark 4 Rifle Scope / Spotting Scope Tenebraex ARD Anti-Reflection Devices

This ARD was my first one. I'm used to using the metal shade tubes. The shade tubes are, in their own right, very effective and handy, but they add more length to the over-all scope size than I like. This ARD is short, very light, excellent quality ( typical of Leupold) and very effective. I get the functional benefit while eliminating a longer appendage on my scope. I do believe they are a little pricey, though. All-in-all, I am very pleased with it.