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5.56 pistol

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. Though they are not entirely identical, the 5.56×45mm NATO cartridge family was derived from and is dimensionally similar to the .223 Remington cartridge designed by Remington Arms in the early 1960s.

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Recent contents
  1. V

    5.56 Pistol Upper

      1. For Sale
    • $400
    • Oregon City
    • Oregon
    Up for sale is a complete pistol upper with a 7.5" stainless steel barrel. Low round count (<200). The barrel is a 1:7 twist. Also included is a Strike Industries pistol buffer and a Hoge grip with battery holder.
  2. S

    Aero Precision M4E1 FDE 8” AR-15 300BLK or 10.5" 5.56 Pistol

      1. For Sale
      2. For Trade
    • $780
    • Tigard
    • Oregon
    About 100 rounds though 300blkd barrel for test and optic zero purposes. Optic and SilencerCo ASR Flash Hider not included (will have standard .30 cal birdcage flash hider on it) I can swap out for 5.56 10.5" Faxon Barrel if preferred. UPPER Aero Precision M4E1 Threaded Stripped Upper Receiver...
  3. BrianHillsboro

    B

      1. For Sale
      2. For Trade
    • $0
    • Hillsboro
    • Oregon
    Bb
  4. PocketSand

    Like New MCX Virtus 11.5" 5.56 Pistol - Black - Unfired *price drop*

      1. For Sale
    • $1800
    • Albany
    • Oregon
    Selling an MCX Virtus pistol that has just been sitting in my safe since I bought it new several months back. This is the black LE variant. I had planned to SBR this but decided to go a different route. Hasn't been fired except by SIG at the factory. Some tiny dings on the finish that it got...
  5. T

    PSA 10.5 A2 Carbine 5.56 pistol upper.

      1. For Sale
    • $300
    • Canby
    • Oregon
    For sale is a Palmetto State armory 10.5 pistol upper. Has Magpul MOE furniture, MBUIS rear sight, BCG and Charging handle. Refer to pictures off of website for detailed description. The BCG and CH are Palmetto. I bought them as a pistol kit. The add pictures state no BCG or CH. I put a few...
  6. aga7040

    Geissele Super Duty 11.5" 5.56 Pistol - Luna Black

      1. For Sale
    • $2000
    • Aloha
    • Oregon
    Unfired Super Duty pistol $2000.00 cash FIRM. Meet at my FFL in Forest Grove. BGC fees on me:s0155:
  7. Tacompton173

    11.3” 5.56 Pistol

      1. For Sale
      2. For Trade
    • $850
    • Puyallup, Tacoma
    • Washington
    Maybe 500 rounds through it. Original owner. Receiver set was cerakote by Aero Precision, originally part of the OD Builders Set. Spins like a top…just another neglected child that wants to be loved. $850 cash. Will consider reasonable trade offers. - Aero Precision M4E1 Receiver Set (OD...
  8. Michael Yi

    Rare - Discontinued Springfield Armory Saint Victor 5.56 Pistol + Kit

      1. For Sale
      2. For Trade
    • $995
    • Vancouver
    • Washington
    Rare -Discontinued Springfield Armory Saint Victor 5.56 Pistol + Kit Model #: B5-STV975556B-B5 Looking to sell either just the upper, or the complete AR pistol with up to $865 of added kit value. Price: $500 for the upper (all of the upper attachments included) $995 for the complete AR pistol...
  9. LeBewm

    Spike's Tactical 5.56 Pistol FS

      1. For Sale
    • $500
    • Portland
    • Oregon
    Hi! Purchased on a whim a couple weeks back, but don't really need it. comes as pictured. 1 30rd mag, mbus sights, sba3 pistol brace Barrel is 10.5 I believe. Purchased from reputable shop as a handgun. Willing to meet @ an FFL in Portland, or as far as Hillsboro or similar distance. Buyer...
  10. aga7040

    Geissele Super Duty 11.5" 5.56 Pistol - Luna Black

      1. For Sale
    • $2000
    • Aloha
    • Oregon
    Unfired Super Duty pistol $2000.00 cash FIRM. Meet at my FFL in Forest Grove. BGC fees on me:s0155:
  11. aga7040

    Geissele Super Duty 11.5" 5.56 Pistol - Luna Black

      1. For Sale
    • $2000
    • Aloha
    • Oregon
    Unfired Super Duty pistol $2000.00 cash FIRM. Meet at my FFL in Forest Grove. BGC fees on me:s0155:
  12. aga7040

    Geissele Super Duty 11.5" 5.56 Pistol - Luna Black

      1. For Sale
    • $2000
    • Aloha
    • Oregon
    Unfired Super Duty pistol $2000.00 cash FIRM. Meet at my FFL in Forest Grove. BGC fees on me:s0155:
  13. DIYshooter

    Hard to find Sig MCX 11.5 Virtus. Grey 5.56 Pistol

      1. For Sale
    • $3200
    • Puyallup
    • Washington
    I have a lightly used Sig Sauer MCX Virtus 11.5” barrel length pistol. I would be surprised if I put 200rds through it. It shows very light wear if you look close (probably not noticeable to most). I love this gun and I’m only selling to finance another MCX build I’ve been working on for a...
  14. dbg19

    CZ Bren 2 MS 5.56 Pistol

      1. For Sale
    • $1250
    • Gresham
    • Oregon
    CZ Bren 2 MS Pistol Caliber: 5.56/.223 Barrel Length: 8" Gas System: Multi position/ Adjustable (tool-less adjustments) Round Count: Under 200 rounds. Original owner. Factory. No mods. No aftermarket accessories. ***The gun accepts M4 Buffer Tubes which allows adding a Brace or a Stock. Can be...
  15. Bowpro295

    5.56 pistol build

      1. For Sale
      2. For Trade
    • $800
    • ROSEBURG
    • Oregon
    Geissele hand guard, Hansen barrel, psa upper and lower, mill spec trigger, sb3 brace. Red dot and irons not included. Can be for extra. 850obo or trades
  16. L

    Final price drop! Springfield Saint Edge PDW - 5.56mm pistol - Get the best "shorty" around - was $2000, now $1000

      1. For Sale
    • $1000
    • Tigard
    • Oregon
    This is a like new Saint Edge PDW with approximately 75 rounds thru it. It features a 5.5" barrel with a 1:7 twist, free float forend, and a Maxim Defense SCW brace. Also included are flip-up Magpul sights. Overall length collapsed is only 18.85". Comes with a single 20-round Magpul mag...
  17. dbg19

    CZ Bren 2 MS Pistol Piston-driven 5.56 8"

      1. For Sale
      2. For Trade
    • $1400
    • Gresham
    • Oregon
    CZ Bren 2 MS Pistol Piston-driven 5.56 8" Original owner. 150 Rounds through it. OEM. No changes. Includes everything pictured, which is everything it came with from factory. Piston-Driven. Tool-less Adjustable Gas System (in case you plan to run suppressed). Fully Ambidextrous. M4 tube and...
  18. dbg19

    CZ Bren 2 MS 5.56 Pistol w/ Brace

      1. For Sale
    • $1600
    • Gresham
    • Oregon
    CZ Bren 2 MS Pistol Piston-driven 5.56 pistol w/ fully ambidextrous controls Condition: Safe Queen. Only 60 rounds fired. Original owner. Caliber: 5.56 / .223 Barrel: 8.26", threaded w/ OEM 3 prong flash hider Gas System: 3 positions: Increased gas (2), Reduced gas (1), No Gas (0). Adjustable...
  19. LT1996

    Aero 10.5” 5.56 Pistol w/ Geissele MK8 and LAW folder

      1. For Sale
    • $1150
    • Beaverton
    • Oregon
    Selling my Aero pistol build, parts list below. I’ve shot maybe 100 rounds through it No trades. Willing to cover transfer fees at my FFL in Beaverton. Aero 10.5” pistol: Aero M4E1 Upper and Lower Ballistic Advantage Hanson barrel Aero BCG Geissele MK8 Super Modular rail Geissele maritime...
  20. OregonSig

    LN PSA 11.5" 5.56 pistol upper

      1. For Sale
    • $349
    • Eugene
    • Oregon
    Selling a sweet little pistol upper chambered in 5.56. It's a PSA m-lok free float set up with an 11.5" 1/7 nitride barrel. In my personal opinion, 11.5" is the sweet spot for AR pistols, plenty small and light but eaks out just a little bit more velocity than the more common 10.5". This bad boy...
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