This is the author’s favorite configuration for the rifle: topping it with a red dot sight and running it suppressed with a 30-round polymer mag. John B. Snow Getting this rifle up and running ...
Red dot sights have become very popular on rifles ... and the AR BDC4 reticle offers trajectory correction for the 5.56 NATO/223 Remington out to 650 yards for a 55-grain FMJBT bullet at 3050 ...