7.62x39mm for your AR, cheaper than 223, most of the time.

A video about yet another round "better" than 223. It has more energy on target and can typically be found at a lower price. Yup you guessed it another anti 223 video. This video reviews the BCA 7.62x39mm upper, BCA lower, and Duramag magazine for this caliber. Over 1K rounds, 2 malfunctions (from not being cleaned btw not from the parts)