5.56 NATO / .223 Rem Caliber & Shopping Guide
Learn about 5.56 NATO / .223 Rem and browse related gear at Apollo Wholesale Club. Verify firearm compatibility and product details before purchase.
About 5.56 NATO / .223 Rem
5.56 NATO and the nearly identical .223 Remington are the standard cartridges for AR-15 platform rifles. Fast, flat-shooting, and widely available, 5.56 is used by the U.S. military, law enforcement, hunters, and competitive shooters worldwide.
Common shopping interests
Home defense (rifle) · Coyote and varmint hunting · Competition (3-Gun) · General purpose rifle · Training
Check the exact product
Confirm the manufacturer's compatibility information and the exact listing before purchase. Current availability and eligible prices are shown in the catalog; an editorial guide is not an inventory or price guarantee.
Ages 18 and older. Applicable product, shipping, and transfer restrictions apply.