I have a S&W AR15 (model MP15a) with a flip up Troy rear sight and standard triangle front sight (like the example pic).
I'd like to get an optic for this flat top MP15a. It would be used in a suburban (basically meaning not urban or rural, but with alot of houses with small yards) hypothetical defense scenario. Hopefully not a last stand alamo-type scenario. Thinking price of $400-500? I would need to know what is needed to mount the optic to the gun also (ideally it would come with that mount, or if you could recommend one). The gun has a 1/9 turn barrel, and I use 55grain-62grain rounds - if that matters. Also, I'm not sure if the front sight "gets in the way". Is that a problem? Do I need to have a gunsmith put in flip up front sight too?
Thank you for any suggestions or links!