I got a 20 round box of 5.56x45mm NATO for my ar. This is the first time I got 5.56, normally I just shoot .223 rem.
Here's a pic of the box:
It reads, in spanish: 20 cartidges war, 5.56x45mm SS109NATO
lot N°1 year 2011
I have no pics of the ammo inside but it's just FMJ.