The video below, which was released in 1990, shows the four rifles that were battling it out become the Army’s next generation Advanced Compact Rifle. It is amusing to see what was considered a good idea back then, like the high sight rib on the Colt ACR (pictured above) which was supposed to help with “point shooting”. On the other hand it is sad to see rifles more than a two decades old with more advanced ammunition than we have available to us today.

Many thanks to crisara772 for the tip.