223 rounds ??

yes it will take and work just fine with the .223 rounds this gun can use either 5.56 NATO or .223 ammo its chambered for the hotter (higher pressure ) 5.56 NATO round so is safe to shoot with the .223 (lower pressure round) here is a good article on the

Nicholas, the Barrel is actually stamped 5.56NATO so both 5.56 and .223 rounds can be fired without issue. If the barrel were stamped .223 then 5.56 ammunition would not be recommended.

yes it will take and work just fine with the .223 rounds this gun can use either 5.56 NATO or .223 ammo its chambered for the hotter (higher pressure ) 5.56 NATO round so is safe to shoot with the .223 (lower pressure round) here is a good article on the