.223/5.56mm Brass

(4 customer reviews)


Top Quality Once Fired 223 Brass For Reloading

  • Casings are collected from indoor shooting ranges
  • Machine sorted and hand-inspected by our team
  • Casings are cleaned and polished
  • Each bag contains casings with mixed headstamps
  • Military brass may be included in the bag
  • We include extra casings in every order
  • Spent primers are still in the casing and should be removed
  • All casings should be inspected before using for reloading
  • In Stock
  • Your satisfaction is 100% Guaranteed

We do our best to ship your order the next business day!

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The 5.56mm also known as the .223 Remington cartridge is by far one of the most popular rifle casings. It was originally designed for hunting purposes and later was adapted by the military with certain upgraded features to create the 5.56 NATO round. You will often see and hear many shooters talk about the 223  and 5.56mm NATO brass interchangeably. The differences are subtle and if you are shooting at the range, there really is no difference. However, this won’t stop shooters from spending hours debating this.

We just want you to know you are getting top quality casings no matter whether you are looking to shoot 223 or 5.56mm.

Why Is 223 Brass So Popular?

One reason that the 223 brass is so popular is that is works with many rifles; bolt-action, semi-auto, and single shot. It used to be that you could easily and readily get 223 brass, but with the increase in gun ownership over the past few years, it has become harder and more expensive to buy factory new rounds. That is why 223 brass has become consistently one of our best selling casings. It is also evident in our collections that there are lots of shooters at the ranges shooting these rounds.

It also has been made extremely popular because it is one of the preferred cartridge used in many rifle matches including the National Championship competitions at Camp Perry Ohio.

Who Uses 223 Brass?

As we mentioned above there are many shooters who like to use 223 Brass, there are the range shooters, hunters, people interested in self-defense, the police, and the military uses the 5.56mm NATO rounds. By buying the casings and reloading the cartridges yourself, you get to control the weight of the round. This is important because by adjusting the weight the bullet will perform as you want it to for different situations such as hunting. For bigger game, you want to have a heavier bullet.

Guns That Shoot 223 Brass

Savage Axiz II .223 Remington Bolt Action, Springfield Armory Saint AR-15 5.56 16″ 30+1, Smith & Wesson M&P15 Sport II .2235.56mm NATO, Daniel Defense DDM4V11, Ruger AR-556, FN Scar 20S Precision Semi-Auto Rifle, Remington Model 700 SPS Tactical Rifles, Savage 110 Long Range Varmint Bolt Action Rifle, Colt Law Enforcement Carbine AR-15, Bushmaster M4 Carbine.

Kel-Tec RDB Defender,  Delton DT Sport Semi-Auto, Sig Sauer P553, Rock River Arms Lar-15, R-guns R.G.Q. Semi-Auto AR-15 Pistol, Diamondback Firearms DB15 AR-15 5.56 NATO Semi Auto Rifle, Ruger AR-556 AR-15 Semi Auto, Stag Stag-15 Tac. 556NATO,  Rock River Arms LAR-15 RAGE Carbine AR-15 5.56 Semi Auto Rifle.

Radical 556 16 M4,  Anderson AM15 Optic Ready,  Colt LE6920CA LE6920 9+1, Del-ton Echo 316L, American Tactical Imports OMNI – MAX Hybrid AR-15, Smith & Wesson SWL MP15SPORTII, Bushmaster XM15 7 Patrolman, FN Herstal 36320 15 Military Collector Semi-Automatic.

Daniel Defense DDM4V11 M4 Carbine, Bushmaster 90212 LE 30+1,  Sig Sauer R516G216BP Sig516 Patrolman Gen 2, Springfield Armory Saint Semi-Automatic 16″3.

Bulk Orders

If you would like a quote on a bulk order of 223 Brass, please contact us directly, and we would be happy to provide one for you. We look forward to hearing from you.


WARNING: This product can expose you to lead, which is known to the State of California to cause cancer. For more information, go to  https://www.p65warnings.ca.gov/

Additional information

Casings per Bag

100, 500, 1000

4 reviews for .223/5.56mm Brass

  1. Steve Herrington (verified owner)

    Rifle brass that looks like new! Both times I ordered from Brass King they shipped my orders quickly in a secure package! Steve H

  2. wyoland (verified owner)

    First time customer here. Am very impressed with my first order. Haven’t reloaded yet but the quality I am more than happy with. And my order arrived very quickly. Thank you all at The Brass King! George

  3. John Moriki (verified owner)

    As this order was available and shipped so quickly when everyone else seems to be out I was a bit skeptical but for the price I had to try. All I can say is “AWESOME”. Thank you.

  4. Charles Roberts (verified owner)

    Good stuff. First bag of 100 had 112. FC 223 Rem made up almost half (53). Not badly dented or scratched. A few were stained dark from weather and/or soil contact, but all were usable. Not cleaned or sized, but I like to size my own to get headspace set to match my rifles. I’ll buy again.

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