I got both the Vortex Viper and Venom 6 MOA to compare. I liked the Viper on my M&P, but found that I could clearly see a flicker in it when moving it around and it wasn't at full brightness. Even got a second one to confirm that all Vipers had the same issue. Whether it mattered enough when shooting I'm not sure, might even have helped in drawing the eye to it.   It bothered me enough that I wanted to see what the Venom 6 MOA would be like when it was released. Venom has a little