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Red dot sights and green dot sights are popular choices for AR-15 owners who want to improve their accuracy and speed. These sights allow you to keep both eyes open and have a lot more leeway with where your head or eyes are positioned. They superimpose a red or green dot as the aiming reticle, making it easier to acquire your target quickly. Some of the best red dot sights for AR-15s include the Sig Sauer Romeo 5, Aimpoint PRO Red Dot Reflex Sight, and Vortex StrikeFire II Red/Green Dot scope.

These sights are user-friendly, rugged, and have features like auto-off and front and rear plastic flip cap lens covers. The Trijicon MRO is a great reflex sight option that packs a ton of features into a tiny, lightweight body. It has a 2 MOA red dot for accurate target engagement and clear glass. When choosing a red dot or green dot sight, consider factors like MOA, brightness levels, and battery life. With the right sight, you can take your AR-15 shooting to the next level.