Hornady Frontier 5.56 NATO 55-grain FMJ ammunition (brand part no. FR200) puts American-made, military-grade components in the hands of AR shooters who put serious volume through their rifles. Hornady builds the Frontier Cartridge line around brass cartridge cases and military-grade boxer primers and propellant, the same standard of components used across a wide range of shooters and applications, from target and match shooting to varmint hunting. The 55-grain full metal jacket bullet resists deformation for dependable feeding through semi-auto AR-platform actions. This 20-round box is a practical, affordable way to keep a well-used AR fed for a range day.

Key Specifications

• The chambering is 5.56 NATO, compatible with .223 Remington-chambered AR-platform rifles.
• The bullet weighs 55 grains, the standard training and practice weight for this cartridge.
• The bullet is a full metal jacket design, resisting deformation for dependable feeding.
• Cases are brass, giving reloaders a quality case after the range day.
• Primers and propellant are military-grade boxer components, the same standard used across Hornady’s premium lines.
• Each box holds 20 rounds, a standard training quantity.
• Shipping weight runs about 0.56 pounds per box.
• Hornady prices this Frontier load at roughly $0.58 a round, reasonable for AR training ammunition.

Frequently Asked Questions

Is Frontier Cartridge ammunition reloadable? Yes, it uses brass cases with military-grade boxer primers, suitable for reloading once fired.

What is this load best suited for? The FMJ bullet and brass case make it ideal for AR training and range work.

How many rounds come in this box? This listing ships a single 20-round box.

Buy Hornady Frontier 5.56 NATO 55gr FMJ, 20-Round Box

An AR rifle that gets shot often deserves military-grade components without a military-contract price, and Frontier Cartridge delivers exactly that. Order from our Lubbock, Texas gun shop and it ships fast to your door.