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5.56mm

The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO) 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, but is not identical to, the .223 Remington cartridge designed by Remington Arms in the early 1960s.

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Recent contents
  1. B

    Sons of Liberty Gun Works (SOLGW) 13.7" EX02 5.56mm rifle

      1. For Sale
    • $950
    • Roseburg
    • Oregon
    SOLGW 13.7" 5.56mm EXO2 rifle for sale. Factory barreled upper with pinned and welded KNOX (Keymo) muzzle device which makes it 16", 1/7" twist 5.56mm, mid-length gas, with SOLGW BCG, SOLGW branded Radian Raptor LT charging handle, and Magpul Pro backup sites. Lower is factory SOLGW Rebellious...
  2. FireArm

    SPF Tavor SAR FDE bullpup 5.56mm

      1. For Sale
    • $1
    • Sherwood
    • Oregon
    used in excellent condition, $1400 possible trade, open to offers TECHNICAL SPECIFICATIONS Tavor SAR - 5.56 NATO 16.5″ Barrel Model Number(s) TSFD16 Color FDE Caliber 5.56 NATO Action Semi-auto Operating System Closed rotating bolt, Long stroke gas piston...
  3. ScarceResource

    B&T Flash Hider - Rotex / Surefire - 5.56mm - 1/2x28

      1. For Sale
      2. For Trade
    • $120
    • Portland
    • Oregon
    This was the factory MD on my APC223. About 300 rounds through it. I removed it to install a different muzzle device that's compatible with my suppressors. P/N: SD-123843
  4. FireArm

    Tavor SAR 5.56mm

      1. For Sale
    • $1400
    • Sheridan
    • Oregon
    Got on trade, don’t want to sell but could use the funds and have a Hellion and AUG NATO. $1400 No red dot One mag magpul
  5. Lars

    LWRC ICDIR5B16 16 inch 5.56mm

      1. For Sale
    • $1400
    • Forest Grove
    • Oregon
    I’ve had this for a few years and never shot it. I would like to sell to fund the completion of other projects. It has a Magpul ACS stock on it. I don’t remember where the LWRC one is. I like the ACS stocks so I think I put it on when I brought it home. I have mounted optics and taken them off...
  6. theoutrider85

    5.56mm Specialty/Hunting Ammo bulk buy w/ .50 cal ammo can, $180 for 306 rounds

      1. For Sale
    • $180
    • Albany
    • Oregon
    4x 50 round boxes of Freedom Munitions REMAN 55 grain V-MAX 46 rounds (open box) Freedom Munitions REMAN 55 grain V-MAX 3x 20 round boxes of SSA by Nosler, 55 grain ballistic tip w/ 50. cal ammo can from my military days. Bought these rounds for the terminal ballistics performance. They shoot...
  7. jebediah

    5.56mm 55gr Winchester FMJ target 140rds. 50.00

      1. For Sale
    • $50
    • Springfield or.
    • Oregon
    New ammo. Priced to sell. Can meet at Cabelas Springfield.
  8. fiveshot

    SOLD!!!

      1. For Sale
    • $1050
    • RENTON
    • Washington
    SOLD. Thanks!
  9. FireArm

    Aero Precision AR pistol 12.5”

      1. For Sale
      2. For Trade
    • Sheridan Sherwood
    • Oregon
    AR15 pistol $800 Mostly Aero Precision Ballistic Advantage 12.5” govt profile B5 grip w/ SB15 (deadly combo) Troy handguard Noveske Kx3 flaming Pig 🔥 🐖 Bad Azz red/green dot (tac-fire) Trade for Bolt action or lever action .308win likely cash on my end 9mm ammo and/or 5.55mm Beretta...
  10. gmerkt

    My beautiful reconditioned 5.56mm cases are giving me a headache

    In another thread lately, I mentioned that I had a batch of 5.56mm reconditioned cases that I bought some years ago. They were advertised at "prepped." They are beautiful, obviously liquid tumbled with pins. When I first got them, I ran about a dozen through a cartridge headspace gauge and...
  11. FireArm

    ets-gen2-ar-15-223-5-56-30rd-magazine-fde

    https://palmettostatearmory.com/ets-gen2-ar-15-223-5-56-30rd-magazine-fde-gn-ar15-30g2fde.html $7.99 ea s&h 9.99 get ten, $89.89 shipped
  12. Art_Vandelay

    Dissipator AR-15 Upper - PSA

      1. For Sale
    • $200
    • OREGON CITY
    • Oregon
    Up for sale is a brand new PSA Dissipator. It's a 16" midlength AR with a rifle length handguard. Check PSA's website for any more details needed. $200. Bought two of these and don't need the second. Will come with the box it shipped in. Can include a NIB PSA 5.56 nitride BCG if needed as well...
  13. E

    SOLGW NOX Flash Hider 5.56mm 1/2x28

      1. For Sale
    • $70
    • Salem
    • Oregon
    This is the 6 port version. Lightly used, near perfect condition but doesn't have any shims. Will ship continental USA: Paypal/Venmo. Otherwise can meet in the Salem area.
  14. laodunfa

    IMI 5.56mm 62gr Green Tip FMJ M855

      1. For Sale
    • $11
    • Beaverton
    • Oregon
    5.56mm 62gr green tip FMJ M855 ammo made by Israel Military Industries 20 per Box; totally 24.5 box (490 rounds) asking $11 per box ($0.55 per round) If you take 24 boxes, the half box and the ammo can is yours for free. total price is $264 Local to Portland metropolitan area only. No shipping.
  15. S

    Anderson AM15-BR 5.56mm

    Anderson AM15-BR 5.56mm NATO 16in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds $399.99 at Sportsmen's Warehouse. Any first hand experience?
  16. B

    Son's of Liberty Gun Works 13.7" EX02 5.56mm rifle

      1. For Sale
    • $1000
    • Roseburg
    • Oregon
    SOLGW 13.7" 5.56mm EXO2 rifle for sale. Factory barreled upper with pinned and welded KNOX (Keymo) which makes it 16", 1/7" twist 5.56mm, mid-length gas, with SOLGW BCG, and a SOLGW branded Radian Raptor LT charging handle. Lower is factory SOLGW Rebellious Stripes with a Larue MBT2S straight...
  17. viscerlaee

    AR-15 stag upper, saa lower - 5.56mm NATO $300

      1. For Sale
    • $300
    • Tualatin
    • Oregon
    I bought these from Oregon rifle works new and assembled the upper and lower together. It has the bolt assist lever or BAD lever by the trigger assembly. It makes pulling the bolt to the rear more fluid for a right handed person. It fires 5.56mm NATO rounds. I built this to maintain while I was...
  18. F

    1000 Round Case 5.56mm 62 Grain FMJ SS109 Brass Case Prvi Partizan Ammo $389.50 Free Shipping

    https://www.sgammo.com/product/223-556mm-ammo/1000-round-case-556mm-62-grain-fmj-steel-core-ss109-brass-case-prvi-partizan-
  19. B

    Sons of Liberty Gun Works (SOLGW) 13.7" EX02 5.56mm Rifle

      1. For Sale
    • $1100
    • Roseburg
    • Oregon
    SOLGW 13.7" 5.56mm EXO2 rifle for sale. Factory barreled upper with pinned and welded KNOX (Keymo), 1/7" 5.56mm, with SOLGW BCG, SOLGW branded Radian Raptor LT charging handle. Lower is factory SOLGW Rebellious Stripes with a Larue MBT2S straight bow trigger, Radian Talon ambi safety, Springco...
  20. S

    Stainless Ruger Mini-ranch .223/5.56mm

      1. For Sale
    • $1000
    • Portland
    • Oregon
    bought in 2003 been in a tactical case ever since... only 300 rounds thru it. Black nylon stock, (2) magazines, a sling and Ruger tac case... I'm in a wheelchair now and can't shoot.
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