My Cart

You have no items in your shopping cart.

Product was successfully added to your shopping cart.

5.56mm NATO Ammunition

5.56 ammo (5.56x45mm NATO) is a rimless bottlenecked intermediate cartridge, favored by military, law enforcement agencies, and civilian shooters worldwide for its reliability, accuracy, and consistency in the field. At GunMag Warehouse, we offer a large selection of 5.56 ammo from renowned manufacturers, including Federal®, Fiocchi®, Speer®, Aguila®, and more. Whether you’re a target shooter or the trusted defender of the household, shop our full collection of 5.56 ammo today!

Best Sellers
Filter
Get 10% Off
Your Next Order Over $100.
Sign up now to receive exclusive offers and the newest arrivals straight to your inbox.
Coupon expires in 14 days. Limit one per customer. Not applicable toward tax, shipping, or ammunition orders. Cannot be combined with other offers or promotions. Certain brands and products may be excluded from this offer. Additional restrictions and exclusions may apply.