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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.

View More On Wikipedia.org
Recent contents
  1. HighLine

    New: Daniel Defense DDM4 PDW SBR

      1. For Sale
    • $2134
    • Newberg
    • Oregon
    Only 1 in stock!!!! Daniel Defense DDM4 PDW SBR, Chambered in 300 Blackout, 7 inch Cold Hammer Forged Barrel with 1:7 Twist Equipped with Maxim Defense CQB Gen 7 Stock Price: $2134.00 https://www.highlinefirearms.com/products/daniel-defense-818773022187-3591
  2. chipotle

    WTS/WTT: .300 AAC Blackout Supersonic Ammo Lot - Ammo Inc., Sig Match

      1. For Sale
      2. For Trade
    • $200
    • Vancouver
    • Washington
    For Sale or Trade: 430 230 rounds total of .300 AAC Blackout ammunition, mix of supers and subs supersonic (all brass case). First, the goods... SUPERSONICS: Sig OTM 125gr supersonics: 210 170 rounds (one box has ten inside). Ammo, Inc. 110gr Hornady VMAX supersonic: 60 rounds SUBSONICS...
  3. N

    300 Blk with extras

      1. For Sale
    • $1100
    • Bend
    • Oregon
    Selling an Anderson 300 Blackoit. Has about 20 rds through it. I have reloading dyes, about 200 loaded rounds and lots of clean brass and a few pmags to go with it.
  4. C

    AR 15 Pistol 300 Blackout AAC folding adapter

      1. For Sale
      2. For Trade
    • $900
    • Clackamas
    • Oregon
    300 Blackout BLK Ar 15 Ar-15 Upper and Palmetto state Lower and BKF AR15 6" 300 BLK 1/7 Twist Pistol Length Barrel W/ 7" Slim M-LOK Rail Upper with folding adapter
  5. O

    MCX Stock Adapter

      1. For Sale
      2. For Trade
    • $90
    • Portland
    • Oregon
    Moving out some of my MCX Virtus parts: Virtus 9" 300 BLK barrel kit (bolt + taper adapter) with flash hider. I have shot less than 50 rounds down the pipe. Barrel had been babied but dry fired a bunch. $600 (BARREL SOLD) (HANGUARD SOLD) MCX stock adapter to go on an AR lower. Got some light...
  6. RainMan_PNW

    Sig MCX Virtus upper - 300BLK 9” - rare factory Coyote Tan

      1. For Sale
    • $1800
    • La Center
    • Washington
    This one is unique - I’ve never seen an MCX upper receiver before or since that was like this one. I ordered a stripped FDE upper from Sig and they sent me this, which is coyote tan and PVD finished instead of the FDE Cerakote that is/was (since they have discontinued it) standard. The inside of...
  7. rjones715

    .300 Blackout 10.5" Barrel - Complete Build

      1. For Sale
    • $1750
    • Bend
    • Oregon
    This is pretty much new. Maybe five rounds have been fired through it. I may even be able to sell some ammo on the side to the buyer. I will list out the bulk of what I know. Buyer to pay all necessary transfer fees. If you have a question on something, I have hyperlinked as many parts as I can...
  8. nerdygunguy

    Wts some 30cal rds (300blk, 308, 300WM & WSM)

      1. For Sale
    • Marysville
    • Washington
    300wsm 180gr Hornady CX-$50ea 300wsm 200gr federal premium Terminal Ascent $50ea All 308 is $30ea 308 Win 178gr Hornady BTHP 308 Win 180gr Remington Core-Lokt tipped AE 300blk100rds Federal Fusion 300blk 20rds Sierra 300blk 40rds All for $275
  9. roedwin77

    DDM4® PDW (300 BLACKOUT)

      1. For Sale
    • $2000
    • Eugene
    • Oregon
    $2000 EXCELLENT CONDITION, 50RDS FIRED. ORIGINAL BOX AND ACCESSORIES (LOCK, MAG, INSTRUCTIONS CASE). ***PISTOL WILL HAVE ALL OEM PARTS RE-INSTALLED/ NOT AS PICTURED**** FREE TRANSFER FEE MEET AT MAZAMA IN EUGENE Ultra-compact platform with 7 inch, 1:7 twist barrel for compatibility with...
  10. Bruiser541

    SOLD - 300 Blackout - Never Fired Lake City Primed Cases - 1,000 CT

      1. For Sale
    • $350
    • Springfield
    • Oregon
    300 Blackout Primed Brass Cases - Brass has never been fired and is made from the same Lake City Brass that our Military uses. Primers are crimped
  11. ScarceResource

    New Ballistic Advantage 8.3" 300 Blackout Complete Upper + 200rds of subs

      1. For Sale
    • $700
    • Portland
    • Oregon
    Brand new, never fired. I decided I don't want to get into 300AAC after all, and I have my eye on something else. I bought this upper assembled from BA. I won't sell the ammo separately until the upper is sold. BA AR15 Enhanced Upper Receiver BA 7" AR15 ATLAS R-One M-LOK Handguard 8.3" .300...
  12. B

    2x AR15 Bolt Carrier Groups 5.56

      1. For Sale
      2. For Trade
    • $75
    • Corvallis
    • Oregon
    I've got 1 brand new BCG for 5.56 or 300BO AR15's. One is Phosphated (HPT/MPI marked bolt) with absolutely no wear, factory fresh parts. Asking $75, I can ship one on the buyers dime. Only trades I'm interested in would be CCI #200, CCI #400 or IMR 4166. Meet in Corvallis or Albany. The...
  13. N

    Almost new Magpul PMAG Gen M3 .300 Blackout 30 round magazines (x12)

      1. For Sale
    • $120
    • Seattle
    • Washington
    Selling Magpul PMAG Gen M3 .300 Blackout 30 round magazines (12) that have only been used a few times (and never dropped). I'm looking to sell locally (Seattle area). Cash only. $120 for all twelve but I'm willing to sell in batches of six ($60/six) if twelve is too many. Stock up while you...
  14. FATAL125

    Craftsman wood lathe w/ tools (needs motor)

      1. For Sale
      2. For Trade
    • $500
    • RENTON
    • Washington
    Hello NWF friends. Up for trade or sale is a Craftsman wood lathe. This belonged to my FIL who passed away a couple years ago. It worked well the last time he used it and thats about as much as I know. There are also a handful of lathe tools that go with it. It'll need a motor, but those are...
  15. dmatzinger

    300 blackout 200 round Ammon can

      1. For Sale
      2. For Trade
    • $230
    • Sherwood
    • Oregon
    Found this when I re organized my garage this weekend. I bought if from sportsman’s, But primarily only shoot this caliber suppressed, so willing to let this go for what I paid for it. Ammo can has not been opened, Open to trades of all kinds Let me know what you got...
  16. toddhastie

    Barnaul Steel Case 300 AAC 500 Rounds .50 CPR

      1. For Sale
    • $250
    • Corvallis
    • Oregon
    500 Rounds of Steel Cased 145 Grain FMJ Barnaul Ammo.
  17. arjunki

    Faxon Firearms AR-15 16" Gunner, 300 BLK, Carbine-Length, 4150 QPQ

      1. For Sale
    • $150
    • Aloha
    • Oregon
    New in bag. Never opened. Decided to go another direction. $165 cash or trade for: 1)Minn kota 42" inch or longer transom mount trolling motor. 2) Fishing rods and reels? 3) Drift boat rear offset anchoring system Let me know whatcha got! 👊😎👍
  18. B

    Case of 300 Blackout S&B 200 grain

      1. For Sale
    • $1300
    • Vancouver
    • Washington
    I have a case of Sellier & Bellot 200 grain subsonic 300 Blackout. I paid $1,300 and would like $1,400. I might sell half but would prefer to sell as a full case. Must be willing to come to Vancouver, Wa to pick up.
  19. D

    345rds of 300 blackout / trade for vortex binoculars

      1. For Sale
      2. For Trade
    • $275
    • Roy
    • Washington
    12x boxes of Winchester 125gr 300 blackout + 2x boxes of Sellier & Bellot 200gr Subsonic 300 blackout + 5rds of Herters 200gr Subsonic 300 blackout. Total of 305rds.
  20. connor882

    Noveske N4 300Blk 16”

      1. For Sale
      2. For Trade
    • Oregon City
    • Oregon
    Wts/wtt early Noveske N4 in 300 blk. 16 inch barrel, Silencerco ASR break, bcm gunfighter charging handle, VLTOR stock, NSR-13.5 rail. Early SN, E000XX and noveske qd endplate, does have Midwest receiver and unknown bcg. Few minor wear spots. Trades considered, preference is another 300 blk gun...
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