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223/556

The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, fyv-FYV-six) is a rimless bottlenecked intermediate cartridge family developed in the late 1970s in Belgium by FN Herstal. It consists of the SS109, SS110, and SS111 cartridges. On 28 October 1980 under STANAG 4172 it was standardized as the second standard service rifle cartridge for NATO forces as well as many non-NATO countries. The 5.56×45mm NATO cartridge family was derived from and similar in dimensions to the .223, but is not totally identical to the .223 Remington cartridge designed by Remington Arms in the early 1960s.

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Recent contents
  1. glockguy

    16in mid length 223/556 barrel

      1. For Sale
    • $150
    • Lebanon
    • Oregon
    I have a few brand new white label 16in mid length 223/556 barrels .750 gas block . 150$ each
  2. G

    223/556 AR15 with extras

      1. For Sale
    • $600
    • RENTON
    • Washington
    I have an AR15 for sale with the following upper and lower by Advanced Combat in Tulsa, OK. 20" stainless fluted barrel by I believe Bear Creek WMD BCG Nikon 223 3X9 scope Hogue Furniture Also have the following that goes with it Range bag Five mags 3 pmag and 2 metal About 500 rounds of...
  3. Papawolfblood

    9mm. 223/556.

      1. Want to Buy
    Hello. I'm looking for 9mm and 223/556. I do not want to pay $1 a round. 50c is already insane. Please someone give me a reasonable deal. Thank you.
  4. Pahonix

    Amend 2 30rd AR 223/556 mags $7.99

    Hell of a deal. https://www.kygunco.com/Product/View?ItemNo=149807&avad=211021_f20becccd
  5. glockguy

    10.5 complete ar15 223/556 upper. 575$

      1. For Sale
    • $575
    • Lebanon
    • Oregon
    SPF I have a 10.5in 223/556 complete upper. Aero precision upper with aero parts kit. 10.5in barrel is a ballistic advantage, Bowden tactical 10in mlok rail, arson machine co muzzle device, white label armory BCG. The barrel its self has 20 rounds through it. The bcg is still new and hasn't...
  6. G

    223/556 Brass

      1. For Sale
    • $1
    • Renton
    • Washington
    I have a couple of hundred rounds of fired 223/556 brass free, you pick up in Renton
  7. glockguy

    6 complete Ar15 enhanced LPK.

      1. For Sale
    • $50
    • Lebanon
    • Oregon
    I have 6 complete enhanced low parts kits from unbranded AR. 50$ each.
  8. Tacticalsaloon

    Surefire AR15 100rd magazine 223/556

      1. For Sale
    • $150
    • Albany
    • Oregon
    Selling for a friend Used but in great condition Surefire AR15 100 round magazine. Please dm for contact info to coordinate sale
  9. L

    223/556

      1. For Sale
    • $20
    • Prineville
    • Oregon
    Winchester. 223 $20 a box other 223/556 also $1 a round. 260 Winchester 62gr 1000 M855 62gr 60 Frontier 62gr 60 PMC 62gr 150 Frontier 55gr 120 Federal 64gr 20 Varmageddon 62gr
  10. glockguy

    Complete 16in 223/556 AR15 uppers. 600$ each

      1. For Sale
      2. For Trade
    • $600
    • Lebanon
    • Oregon
    Iv got 2 complete 16in mid length uppers. Bowden tactical 15in mlok rail. While label armory BCG and 1:7 556/223 barrel. Aero precision upper, aero precision upper parts kit and arson machine co. A-hole micro muzzle device $600 each I'm looking for a glock 19 and would consider trading an...
  11. glockguy

    2 never fired Ar15s 223/556

      1. For Sale
    • $950
    • Lebanon
    • Oregon
    These 2 are looking for a new home. Areo upper/lower, aero buffer kit. Minimalist butt stock. 15in rail, 16in white label armory mid length barrel, and BCG, Enhanced lower parts kit. Arson machine co muzzle device. No trades. Ill pay for background if we meet at my ffl. 900 OTD for the all...
  12. supersixone

    223/556.

      1. For Sale
      2. For Trade
    • $1
    • Lacey
    • Washington
    I have boxes store bought 223 & 556 for trade or sell I’m asking $1 a round. Or trade for 308/ 7.62x51.
  13. glockguy

    Complete aero lower $300

      1. For Sale
    • $300
    • LEBANON
    • Oregon
    I got a complete aero lower, with lower buffer kit and unbranded AR enhanced LPK. Message me for price. Local pick up at my ffl. If picked up from my ffl ill cover transfer fee
  14. glockguy

    Complete ar upper 223/556 (minus BCG and charging handle) $600

      1. For Sale
    • $600
    • lebanon
    • Oregon
    Complete ar upper 223/556 (minus BCG and charging handle) aero upper/upper parts kit) BKF mid length 16in barrel, 15in timber creek rail, arson machine co muzzle device. Message for price. Local pick up.
  15. L

    75gr 223/556 ammo

      1. For Sale
    • portland
    • Oregon
    American Eagle 223 TMJ 75gr -$15 box of 20 Hornady TAP 556 75gr - $20 box of 20 Hornady TAP 556 BTHP 75gr - $50 box of 50 Price firm. FTF in Portland
  16. Mr.B

    223/556 BCG

      1. For Sale
    • $100
    • Eugene
    • Oregon
    Bought a couple of these from a buddy that upgraded to nickel boron when he built his ARs, so I bought them from him for future builds. Looking to pass this one along to someone that can use it. Not sure what brand/manufacturer, but bolt is marked C158 mpi, that’s the only marking on it. Asking...
  17. RugerFan

    223/556 factory crimp die *pending*

      1. For Sale
    • $15
    • Camas
    • Washington
    I’d like to sell a never used new lee 223/556 factory crimp die. Very handy for semi auto guns
  18. mkamal76

    40 S&W and 223/556 Ammo for 9mm or 45ACP

      1. For Trade
    • Sammamish
    • Washington
    I don't know when this ammo shortage will end, but until then I have been reduced to trading what small amount of ammo I have with what I need desperately. So here is some of my ammo that I can let go. Hopefully you can find what you need and we can make a trade. What I have: 2 boxes of...
  19. trekkerpaul

    Wolf 762x39 ammo

      1. For Sale
    • $450
    • Canby
    • Oregon
    I have up to a case of Wolf performance 123 grain 762x39 ammo, sealed cases. 2K available. 450 per case
  20. glockguy

    Ar-15 223/556 never fired $1,000

      1. For Sale
    • $1000
    • Lebanon
    • Oregon
    $1,000 and ill cover the background check at my ffl. No trades Aero precision upper/lower Timber creek 15in rail BKF 16in mid length barrel MFT minimalist butt stock Aero buffer kit. Arson machine co muzzle device Toolcraft bcg White label armory enhanced LPK Aero precision upper parts kit
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