5.56 & .223 Ammo for Sale

If you run an AR-15, 5.56x45mm NATO and .223 Remington are the rounds you shoot most. Our 5.56 ammo listings cover bulk full metal jacket for training, green-tip and M193-style loads, match ammunition for precision work, and soft-point and polymer-tip hunting loads for varmints and coyotes.

Search groups 5.56, 556, 5.56 NATO, 5.56x45, .223, and .223 Rem together, so you see every compatible box in one list (.223 WSSM stays separate). A quick note on chambers: rifles marked 5.56 or .223 Wylde safely fire both, but a rifle chambered only for .223 Remington should not be fed 5.56 NATO. Check your barrel stamp.

Need the rifle too? Browse our AR-15 and rifle inventory. Firearms ship to your local FFL for transfer.