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300 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 a carbine 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 AR-15 while using standard AR-15 magazines at their normal capacities. Care should be taken not to use 300 BLK ammunition in a rifle chambered for 7.62×40mm Wilson Tactical.

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Recent contents
  1. Armed Patriot

    300 BLACKOUT AAC - 100 ROUND LOTS - ALMOST GONE

      1. For Sale
    • $115
    • Woodburn
    • Oregon
    NIB Barnaul 300 Blackout ammunition. 100 rounds/5 boxes/20 rounds each. $125.00 Multiple lots available. 145 Grain, FMJ, Polymer Coated Ballistic Coefficient (G1): 0,366 Muzzle Velocity V0 ft/sec: 1,985 Muzzle Energy E0 J ft/lb: 1,268 Max Powder Pressure Bar (lb/inch2): 50,763 Cartridge Max...
  2. Semperseller

    Sig 300 blackout 125gr

      1. For Sale
    • $30
    • Portland
    • Oregon
    Sig Elite performance 125gr
  3. P

    Bear Creek Arsenal AR-15 Rifle, .300 Blackout

      1. For Sale
    • $565
    • Beaverton
    • Oregon
    The rifle is factory new and I have never shot it. I bought with intention to customize it but never got around to doing anything with it. The newer version with mlok rail are currently going for $730 on website (BCA | Rifles | AR-15, AR-10, & AR-9) so this un-shot example will give you a good...
  4. P

    Bear Creek Arsenal AR-15 Rifle, .300 Blackout

      1. For Sale
    • $550
    • Beaverton
    • Oregon
    The rifle is factory new and I have never shot it. I bought with intention to customize it but never got around to doing anything with it. The newer version with mlok rail are currently going for $730 on website (BCA | Rifles | AR-15, AR-10, & AR-9) so this un-shot example will give you a good...
  5. Roymil

    9mm Defense Ammo

      1. For Sale
      2. For Trade
    • $75
    • Aurora
    • Oregon
    Forgot I ordered this a few months ago and it just came in. Winchester Defender 147gr JHP. I can part with 2 boxes (20rnds each- 40 total) of it for someone in need of carry ammo. $40 each or $75 for both. Yes I know it's spendy but if you can find it cheaper buy it up. This was $26 a box...
  6. Semperseller

    300 blackout ammunition

      1. For Sale
    • $70
    • Portland
    • Oregon
    300 blackout ammunition. Magtech tactical 147grain. 50 rounds for $70.
  7. DerekWest

    AR parts/ vortex optic

      1. For Sale
    • $1
    • Battle Ground
    • Washington
    I no longer have any AR lowers so I have zero use for this stuff. CMC flat face 2 stage trigger- $80 B5 stock with buffer tube and buffer- $50 300 Blackout Upper without bcg, charging handle, and gas block- $200 Vortex optic- $220 Located in Battle Ground, can meet as far as Longview, or...
  8. CrackPipe

    .300 Blackout Barrel

      1. For Sale
    • $150
    • Washougal
    • Washington
    Aero 16” CMV pistol length barrel. Used a handful of times while waiting for my tax stamp.
  9. Nurv1717

    MAJOR MOVING SALE: .300 Blackout

      1. For Sale
    • Happy Valley
    • Oregon
    Hey guys, Hey guys, I'll be moving in about a month so I'm letting go of a lot of my extra ammo. It also means I'll be able to reload again soon. Not looking for trades at the moment. Larger deals will be given priority. Please check my other listings for other ammo listed for sale. I live in...
  10. jaytee0115

    Rosco Mfg Bloodline 8.2" 300 Blackout AR15 Barrel BNIB

      1. For Sale
    • $160
    • Albany
    • Oregon
    Selling my BNIB barrel. I had a build in mind, but I decided to go another direction. These are sold out everywhere. My loss is your gain. $160 Here are some specs from the mfg website: Features: 8.2" heavy contour Pistol length gas system 5/8x24 threading with 11-degree crown 1:7 twist...
  11. DerekWest

    Aero 300 Black Out incomplete

      1. For Sale
    • $400
    • Battle Ground
    • Washington
    I’m been sitting around for over a year now incomplete. Aero lower and upper Troy handguard Unknown 300 black out barrel that apparently was used. Flat face two stage trigger B5 stock and grip Missing the following: Bolt carrier group Charging handle Gas block Front take down pin Bolt...
  12. NStone23

    300 Blackout Barrel

      1. Want to Buy
    • Damascus
    • Oregon
    Looking for a new or used 300 blackout barrel for an ar build I’m doing.
  13. AlwaysOnTheGo

    Remington .300 AAC Blackout 120 gr FMJ OTFB

      1. For Sale
    • $175
    • Vancouver
    • Washington
    100 rounds Remington .300 AAC Blackout 120 gr FMJ OTFB $175 per 100 rounds. (400 rounds total available, sold in multiples of 100 only) Will meet you face to face in the Vancouver (Hazel Dell) area.
  14. A

    Price drop!! Ruger American ranch 300 blackout

      1. For Sale
    • $300
    • Scappoose
    • Oregon
    Looking to sell my ruger American in 300 blackout. It has a 5 rnd detachable mag with a 16.5 inch barrel. Only has about 75rnds through it all hornady black ammo. Scope on it is a crossfire 2 3-9. 300 without scope 400 with scope buyer pays ffl fees
  15. pdxRealtor

    PSA 300 Blackout Upper

      1. For Sale
    • $250
    • Gresham
    • Oregon
    This is a low round count PSA upper. Nice 416r stainless barrel. No BCG/charging handle - 250.00 Barrel Length: 8.5" Gas System: Pistol Length Barrel Prole: A2 Style Barrel Steel: 416R Barrel Finish: Stainless Steel Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 300 AAC Blackout Twist...
  16. C

    WTB or WTT for 300 blackout

      1. For Sale
      2. For Trade
    • $1
    • Graham
    • Washington
    So I bought a new 300 blk out upper around Christmas and havent had time to shoot it. Now I have some time to do some plinking and cant find any ammo. I thought I had a couple of boxes in my ammo room, but cant find them. If you have a couple boxes that are reasonably priced or you're willing...
  17. fredball

    300 Black out 123gr

      1. For Sale
    • $40
    • Vancouver
    • Washington
    Sold to 2112shooter pending pick up 150 rounds 300 Black out 123gr Factory new FIRST COME FIRST SERVE Selling for non computer friend not my ammo No ammo cans included in sale must be picked up in vancouver $40.00 a box or 112.50 for all three boxes
  18. jimmeh

    Zev 300 Blackout Upper with a lot of extra's.

      1. For Sale
    • $1600
    • Renton
    • Washington
    Would really like to sell everything as a lot in the sale. Not piece-mealing this out. Every part of this sale is brand new. More than $1,800 worth of stuff here, not including the WA tax that was paid. Price firm at $1,600. Complete .300 blackout upper (Zev) with Leupold scope, Trifecta...
  19. D

    9" .300 Blackout Pistol

      1. For Sale
      2. For Trade
    • $950
    • Gig Harbor
    • Washington
    Looking to sell or trade my .300 Blackout pistol. Specs are below: Aero Precision M4E1 lower Aero Precision M4e1 Enhanced Upper Ballistic Advantage 9" x300 Blackout barrel - Performance Series Aero lower parts kit Larue MBT-2S trigger Daniel Defense fixed sights Aero Precision Enhanced Quad...
  20. Mrcorpuz360

    B&T APC 300

      1. For Sale
    • $2901
    • Vancouver
    • Washington
    I have a like new B&T APC 300. Less than 50 rounds shot threw it, looking too well to fund something else. Comes with everything it came with from the factory cleaning kit, hard case, sling I have original P man that came with it another mag 1FDE lancer mag. Looking to sell for $3500 if you...
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