Fwiw. Colt did ARs in .222 also. Wasnt just Minis.............................
Saw one of those in the "gun library" at the Cabelas in Sidney, Nebraska. Supposedly made for the Italian civilian market because they weren't allowed to own a gun chambered in a round used by the military. It was marked "AR-15 A2 Cal. .222 SPORTER II". IIRC, they wanted $2600 for it.