F American Eagle 5.7x28mm Ammo 40 Grain FMJ Rifle Ammo - 500 round case $319.99 AE5728A show more like this $8.99 Flat Rate or FREE over $175 AR15Discounts F American Eagle 5.7 Ammo 40 Grain FMJ Rifle Ammo - 500 round case $319.99 AE5728A show more like this $8.99 Flat Rate Dirty Bird Industries