I use one on my turkey gun. Buy a extra battery before you leave. You might not need it but you know.
i have considered taking mine off, because turning it on and off all the time is a hassle.
But a guy I know kills birds every year with one. The Turkeys do see the red lense, but if you are well camo, they have trouble deciding what it is.
Sorry I mis-read thought you were talking about Tru-glow red dot.