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300 aac blackout

The .300 AAC Blackout (designated as the 300 BLK by the SAAMI and 300 AAC Blackout by the C.I.P.), also known as 7.62×35mm is an intermediate cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine. Its purpose is to achieve ballistics similar to the 7.62×39mm cartridge, or even more similarly, the 7.92×33mm Kurz cartridge in an M4 while using standard M4 magazines at their normal capacities. 300 BLK ammunition cannot be used in a rifle chambered for 7.62×40mm Wilson Tactical. It is mainly derived from the .300 Whisper concept, but differs in having been submitted to the SAAMI.

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Recent contents
  1. CreepingDeath

    300 AAC Blackout Brass W/ 220gr Berry’s bullets

      1. For Sale
    • $90
    • Corvallis
    • Oregon
    345 pieces of primed brass. Brass is a mix of formed from 223 brass and factory 300 blackout head stamped brass. Mostly consisting of formed brass from 223. Just need some powder and a bullet. Also 19 pieces of 1x fired 300 BLK headstamp brass. ** Includes 101ct. 220gr Berry’s Bullets** $90...
  2. CreepingDeath

    Barnes Vor-Tex 300 AAC Blackout

      1. For Sale
    • $25
    • Corvallis
    • Oregon
    One full box of 20 rounds. $25. Pick up in the Corvallis/Albany area.
  3. jkor

    Ruger mini 14 magazines 223/5.56 and 300blk. 20rnd

      1. For Sale
    • $30
    • Salem
    • Oregon
    Have 10 unopened authentic mini 14, 20 round mags for sale. 30 each plus shipping.
  4. Roymil

    Subsonic 300blk Bundle

      1. For Sale
    • $240
    • AURORA
    • Oregon
    I've got bills to pay so I need to let a little bit of my stash go. I would really rather not separate it. Bundle includes : 200rnds Ammo Inc 220gr TMC, 40rnds Hornady 190gr Sub-x Defense, 2 Magpul 300blk 30rnd Pmags. $240 to get you started in subsonic suppressed fun. No can yet? I've also...
  5. bpyycpyy

    Pending Meetup: RCBS 22401 (300 AAC Blackout) dies

      1. For Sale
    • $50
    • Spanaway
    • Washington
    For sale: Used RCBS FL Die set 22401 (300 AAC Blackout). Set includes shell holder, Lee Factory Crimp die and all 3 dies have the Hornady quick change bushing installed. Will not ship but do travel around the PNW for work and might be able to meetup along the way. $75 for what's shown in the...
  6. T

    Sellier & Bellot 300 AAC Blackout Subsonic Ammo/Mags

      1. For Sale
    • $925
    • HILLSBORO
    • Oregon
    860 Rounds Sellier & Bellot 300 AAC Blackout Subsonic Ammo + 20 rounds of Hornady 300 Blackout Subsonic Ammo (190 GR.) + (5) 30-round mags: $925. Pick up only.
  7. T

    Sig MCX Rattler 300 AAC Blackout Pistol/Accessories/Ammo

      1. For Sale
    • $2000
    • HILLSBORO
    • Oregon
    Sig MCX Rattler 300 AAC Blackout pistol for sale. Excellent condition. Only 200 rounds down the pipe. - Sig MCX Pistol Original Price: $ 2,500 - SB Tactical MPX Folding Pistol Brace Original Price: $200 - Magpul MBUS Pro Front/Rear Iron Sights Original Price: $210 - Radian Raptor Charging Handle...
  8. WildBills-AR

    Ballistic Advantage Enhanced 5.56 300blk with extras

      1. For Sale
    • $1100
    • Beaverton
    • Oregon
    Like new Ballistic Advantage with lots of extras and nice parts. Price is $1,100. 8" 5.56 BA barrel (unfired) installed with superlative arms adjustable gas block. Including 300blk 8.3" BA Hansen barrel with only a few mags through it maybe 60 rounds. 7" BA handuard BA marked nitride BCG, BA...
  9. Shane117

    PMM Scar M-lok, MCX Virtus .300blk kit and MI rails

      1. For Sale
    • Seattle
    • Washington
    Good Evening, I'm located in Seattle WA but spend alot of time in Kitsap county for FTF. - Standard EE Rules - Cross Posted, Dat1Guy117 is my ARFcom (time stamp gets priority) - PayPal F&F or Venmo - All prices shipped - Unlikely to split up at this time - Will discount if multiple items...
  10. ScottInPDX

    WTB: Small quantities of subsonic 300 BO

      1. Want to Buy
    • Tualatin
    • Oregon
    I'm switching a rifle over to 300BO, and I want to try a couple of different factory loads to see which ones work best for it. I'm looking to buy 20-60 rounds of subsonic, no remans, steel case is fine. I'll pay cash and pick up in person from Wilsonville to Portland near I5. I'll consider...
  11. NobullSKS

    .300 blk primed brass and loaded OBO

      1. For Sale
      2. For Trade
    • $200
    • Kent
    • Washington
    Recently sold my .300 blk chamberings Gues I could sit on these until I’m ready to get back into it but can use some funds. I’ll keep the dies. Temping to sell as usable ammo to a friend so trying to avoid liability and selling for components only here. Total loaded 329 rnds Primed cases 150...
  12. S

    300 Blackout for 5.56

      1. For Trade
    • Corvallis
    • Oregon
    I acquired some 300 Blackout ammo in a trade, but I don't have a 300 blackout rifle. I have 40 rounds of Barnaul steel cased FMJ and 34 rounds of PPU brass cased hollow points. I'd like to trade for 223 or 556. Meet in Corvallis only for this little trade. Thanks!
  13. ScottInPDX

    WTB: 20 and 30 round 300BO AR Mags

      1. Want to Buy
    • Tualatin
    • Oregon
    Looking to build a stash of 300BO AR mags. Mainly interested in Magpul, Lancer, and D&H. Will consider others, but not interested in ProMag, HexMag, or Hera.
  14. jbett98

    300 AAC Blackout Reloading Stuff

      1. For Sale
    • $125
    • Gresham
    • Oregon
    I'm never going to start reloading for 300 Blackout, so I'm listing these items for sale. 1.000 small rifle primers, (2) one lb containers of Reloder #7 powder and a set of Lee 300 AAC Blackout dies. All new. Asking $ 125.00 cash. Located in the Gresham, OR area. Not interested in trades or...
  15. shlo812

    10.5" 300 BLK Upper & Ammo Package

      1. For Sale
    • $280
    • Chehalis
    • Washington
    For sale is a 10.5" 300 BLK upper made by Right to Bear Arms. It's brand new and has never been fired. It has a 9" MLOK rail. No BCH or CH included. The rest of the specs can be found by clicking the link below...
  16. D

    Hornady 30 cal 208gr ELD-M projectiles

      1. For Sale
    • $30
    • Tualatin
    • Oregon
    (4) boxes available, $30/box. Can meet in Tualatin near Bass Pro or Fred Meyer. Blackout subs?
  17. D

    Hornady 30 cal 150gr FMJ/BT

      1. For Sale
    • $20
    • Tualatin
    • Oregon
    (3) boxes available. $20 per box. Unopened. Can meet in Tualatin near Cabelas.
  18. 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...
  19. TheRealMP

    8” BA 300blk barrel with adjustable gas block and gas tube

      1. For Sale
      2. For Trade
    • $125
    • Olympia
    • Washington
    8” ballistic advantage barrel in 300BLK, adjustable gas block, and gas tube. Only 30 rounds down the barrel to test for function.
  20. localbrew

    WTB BCM 300 Blackout 9" Upper

      1. Want to Buy
    • Lake Oswego
    • Oregon
    Please PM me, only interested in excellent/good condition factory assembled BCM 9" 300 blackout upper. Thank you Mike
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