Hornady Frontier 3,240 fps 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammunition

Hornady Frontier 3,240 fps 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammunition

Trusted by shooters, built for performance. The Hornady Frontier 3,240 fps 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammunition delivers consistent accuracy, dependability, and military-grade specifications. Whether you’re training at the range, target shooting, or stocking up for tactical readiness, this ammo combines Hornady’s bullet technology with Lake City’s NATO-compliant brass and primers, offering precision you can count on shot after shot.

Key Features & Benefits:

• • Caliber: 5.56x45mm NATO

Built to NATO specifications and ideal for AR-15 platforms and other 5.56-chambered rifles.

• • 55 Grain Full Metal Jacket (FMJ) Bullet

Delivers flat trajectories, reduced barrel fouling, and ideal penetration for training and tactical use.

• • Premium Brass Casings

Boxer-primed, reloadable brass cases ensure long-term reliability and value for high-volume shooters.

• • Military-Grade Components

Loaded at the Lake City Army Ammunition Plant with strict quality control, NATO-spec primers, and clean-burning propellants.

• • Consistent Accuracy and Function

Engineered for reliable feeding, ignition, and cycling in modern sporting rifles, including semi- and full-auto systems.

• • Versatile Application

Excellent for range training, tactical drills, defensive readiness, and recreational shooting.

Specifications:

• • Caliber: 5.56x45mm NATO

  • Weight: 55 Grain

  • Load Type: Full Metal Jacket (FMJ)

  • Muzzle Velocity: 3,240 fps

  • Muzzle Energy: 1,282 ft-lbs.
•  
  • Rounds Per Box: 150

Warranty & Support:

Hornady is warranted against material and workmanship defects. If the ammunition is found to be defective due to material or workmanship, Hornady will replace the defective ammunition at no charge to the customer. For assistance or product support, contact Hornady customer service directly.

Why Choose the Hornady Frontier 3,240 fps 5.56x45mm NATO 55 Grain Full Metal Jacket Brass Cased Centerfire Rifle Ammunition?

When performance matters, Hornady Frontier stands above the rest. Built to military standards and trusted by professionals, this 5.56x45mm NATO round combines Hornady's legendary bullet design with battle-proven manufacturing from the Lake City Army Ammunition Plant. Whether you're training, defending, or preparing, Frontier delivers the reliability, consistency, and quality serious shooters demand—every time you pull the trigger.

**WARNING:** This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov

Federal law mandates that you must be at least 18 years old to purchase rifles, shotguns, and their respective ammunition, and at least 21 years old to purchase all other firearms and ammunition. Ammunition will be shipped via ground service by the carrier of our choice to the contiguous 48 states only. A street address is required for delivery. There is no option for shipping ammunition to international customers.

For safety reasons, we do not accept returns on ammunition with no exception. Always make sure you are using the correct ammunition and firearms. No Exceptions.

DNW Outdoors customers in La, DC, MN, PA, NY, NJ, MA, IL, CT, and CA should check with their local laws for ammunition restrictions before placing an order.

DNW Outdoors reserves the right to ask for proof of age when buying age restricted items such as ammunition and firearms. No Exceptions.