When comparing rifle sights, it helps to see one maker's full range. Ozark Armament's Amazon store has an Ozark Armament Iron Sights page that lists its products together, including a flip-up front and rear sight set, A2-style rear sights, A2-style front sights for rail height and gas block height, and 45-degree offset sights. Fixed, folding and offset sights each fit a different rifle setup, and the page makes those choices easy to compare before you open each listing for specifications and reviews. It is a simple starting point if you are still deciding on a sight style. If an optic is already on your rifle, start with the folding set or the offset sights. If the rifle will run irons as its main sight, start with the A2-style options and check whether your front sight mounts on a rail or on the gas block.