Standard vs Sport- sights?

[holmegaard]

Rented a Sport at my LGS this afternoon, & it didn't take long to decide I wanted one. They have both the Sport & Standard versions available, at the same price.
Am pretty much agnostic as to the difference in the hand guards, but the different sights caught my attention & I'm not sure which would be better for me. Love peep & post sights, so both are fine in that regard. I have no intention of putting a scope or red dot on it.
Sport - The folding MBUS sights are pretty slick, but it doesn't appear the rear sight is elevation adjustable. Assume any elevation adjustments are done on the front sight? Does it require tool(s)?
Standard - Click adjustable rear sight, which I like. Are the click adjustments repeatable in your experience, and is the mechanism durable enough to handle frequent adjustments?

Thanks in advance for your advice & patience. New world for me, coming from handguns & bolt action rifles.

[cjt50]

The standard version sights are copies of the original M16A2 sight configuration. The elevation wheel on the rear is actually for dialing distance. The front sight is where elevation should be adjusted for initial zero.

The nice thing about the sport's folding sights is that if you ever decide to get an optic, they fold out of the way for a clearer sight picture.

The sport includes a tool for front sight adjustment. Standard does not, but any any AR sight adjustment tool will work with both. You can adjust both standard and sport front sights with any pointed object so a tool is not really required but make it easier.