Description 5.56 NATO Frontier Cartrigdes Feature Hornady Bullets. State-Of-The-Industry Loading Techniques And Quality Control Procedures Ensure The Reliability Of Every Frontier Cartridge Round. Frontier Cartridge Offers Ammunition Configured For A Wide Range Of Shooters And Applications, Everything From Plinking, Target Shooting And Hunting To Law Enforcement Training And Self-Defense. In Addition To Hornady Bullets In A Variety Of Offerings, Frontier Cartridge Features Brass Cartridge Cases And Military-Grade Boxer Primers And Propellant. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.