Thread: Quick AR15 Question regarding ammo.

Only been using .223 ammo in my gun. Manufacturers website says the following

" No 5.56mm NATO round will be sold nor shipped internationally with the exception of military or law enforcement purchases and only with proper documentation and approval from the State Department.
All exported rifles will be supplied in .223 Remington and will include permanently attached compensators per US State Department regulations."

The upper has .223 Calibre engraved on it.
This obviously means I cant use 5.56mm ammo in this gun or can I ?


Thanks in advance Im sure somebody will know .....