High end scopes have custom options. But at the low end a Sun Guard Kill Flash & matching Butler Creek flip open are effective within the lens covers limits. SunGuard KillFlash ARD (Anti-Reflection Device) #4 - UPC: 813545000042
Okay, got The Capital Fourth Rocking and little Red White & Blue Version Of Evan Williams rolling, but if Y'all got an ARD on it's best to remember that it's an afternoon delight!
It's really nice to see more options for the Kill-Flash then what we had when I was in, back then we had to make our own, which was usually some sort of duct tape and spray paint. Other dudes would use netting, but I had to coolest one of all, Black Panty hose!!! LOL I would take a couple of used pairs from a certain nurse I knew, and using a tin can and a soldering iron, made my own Kill-Flash. Simply stretch two layers over your scopes objective and secure with those nice wide shellfish rubber bands and your good to go!
You really have me questioning your motivation while shooting from behind/between a pair of Nurses Black Panty Hose??????? Perhaps it's best I stop my line of questions here? But I think I'll take you on my boat crew! ?