Incredibly fast, with a muzzle velocity that’s generally more than 3,000 feet per second, you’ll find 5.56 ammo with a 62-grain projectile as well as lighter rounds with a common 55-grain bullet. In either case, you can expect muzzle energy to be in the ballpark of 1,300 foot pounds.

5.56x45mm nato ammo has been the standard round of the U.S. Military since 1963. To find bulk 5.56x45mm nato ammo, use the "Sort By" toggle at the top of the page. 5.56x45 ammo is available from 55 to 77 grain bullet weights. 5.56x45 ammo for sale that's in stock at Lucky Gunner Ammo - today!

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Palmetto State Armory offers high-quality 5.56 ammo at competitive prices, making it the go-to source for reliable ammunition. With a wide selection and fast shipping, Palmetto State Armory ensures you get the best ammo for all your shooting needs.

Choosing between the 5.56mm and .300 Blackout rifle ammunition for hunting or shooting? Our guide helps you pick the best cartridge for your needs.

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Find in stock 5.56 nato ammo from the top online retailers to find the lowest price. Find Bulk 556 ammunition fast and cheap with our ammunition search engine.

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Palmetto State Armory stocks some of the cheapest 5.56 bulk ammo you can find. We offer such great deals on 5.56 ammunition because we understand your passion for shooting your beloved AR-15 rifle. Our goal is to keep your love for firearms high while keeping costs low. So, keep your ammo can full right here at Palmetto State Armory.