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AR-15 Ammo

Discover premium 5.56 NATO ammo at 4140 Armory, crafted with precision right here in the Heartland of Texas. Our selection includes a variety of grain weights and projectile types, such as FMJ, BT, and Hornady Match, ensuring you find the perfect match for your shooting needs. Whether you're purchasing in bulk or in smaller quantities, our 5.56 NATO rounds deliver reliable performance at competitive prices, with financing options available to make stocking up easier. Trust 4140 Armory for all your 5.56 NATO ammunition needs.