AR-15 300 Blackout Ammo for Sale
(4)
American Eagle 300 AAC Blackout 150gr FMJ-BT Ammunition 20rds - AE300BLK1
Brand:
Federal
Bullet Type:
Full Metal Jacket Boat Tail
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
150 grain
From:
$17.49
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24
(20)
Winchester 125gr Open Tip 300 Blackout Ammo, 20rd - USA300BLK
Brand:
Winchester
Bullet Type:
Open Tip
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
125 grain
From:
$15.46
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28
(4)
American Eagle 300 AAC Blackout 220gr OTM Sub-Sonic Ammunition 20rds - AE300BLKSUP2
Brand:
Federal
Bullet Type:
Full Metal Jacket
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
220 grain
From:
$15.99
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25
(3)
Hornady 300 AAC Blackout 135gr FTX Custom Ammunition, 20 Round Box - 80881
Brand:
Hornady
Bullet Type:
FTX
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
135 grain
From:
$21.99
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22
(13)
Fiocchi 300 AAC Blackout 150gr FMJ Ammunition 50rds - 300BLKC
Brand:
Fiocchi
Bullet Type:
Full Metal Jacket Boat Tail
Caliber:
.300 AAC Blackout
Capacity:
50
Finish Per Color:
Brass
Grains:
150 grain
From:
$34.71
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26
(1)
Federal Fusion .300 AAC 150 gr FSP 20 Rounds Ammunition - F300BMSR2
Brand:
Federal
Bullet Type:
Fusion Soft Point
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
150 grain
From:
$19.99
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26
(8)
Winchester 300 AAC Blackout 150gr Deer Season XP Ammunition, 20 Round Box - X300BLKDS
Brand:
Winchester
Bullet Type:
EXTREME POINT
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
150 grain
From:
$19.59
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25
(13)
Winchester .300 AAC Blackout 200 gr Super Suppressed Subsonic Ammunition, 20 Rounds - SUP300BLK
Brand:
Winchester
Bullet Type:
OPEN TIP RANGE
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
200 grain
From:
$17.99
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23
(0)
Magtech 300blk 123gr Fmj 50/box
Brand:
Magtech
Bullet Type:
Full Metal Jacket
Caliber:
.300 AAC Blackout
Grains:
123 grain
Rounds:
20
From:
$15.39
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24
(20)
Hornady Subsonic 300 Blackout 190gr SUB-X 20rds Ammunition - 80877
Brand:
Hornady
Bullet Type:
SUB-X
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
190 grain
From:
$24.50
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24
(0)
AMMO FRONTIER 300 BLKOUT 125GR FMJ 20/BX UPC: 090255713978
Brand:
Hornady
Bullet Type:
FMJ
Caliber:
.300 AAC Blackout
Capacity:
20
Grains:
125 grain
Rounds:
20
From:
$17.49
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20
(0)
Ppu Ammo .300 Aac Blackout - 125gr. Hpbt 20-pack
Brand:
Prvi Partizan
Bullet Type:
HOLLOW POINT BOAT TAIL (HPBT)
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
125 grain
From:
$18.00
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18
(1)
Fiocchi Subsonic .300 AAC Blackout 220gr Sierra Matchking HPBT Ammunition, 25 Round Box u2012 300BLKMB
Brand:
Fiocchi
Bullet Type:
Hollow Point Boat Tail
Caliber:
.300 AAC Blackout
Capacity:
25
Finish Per Color:
Brass
Grains:
220 grain
From:
$22.68
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21
(0)
Winchester USA Target 147 gr FMJ 300 Blackout Ammunition, 20 Rounds - USA300B147
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
147 grain
From:
$15.46
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21
(0)
Winchester .300 AAC Blackout 200 Grain Super-X Centerfire Rifle Ammunition, 20rds - X300BLKX
Brand:
Winchester
Bullet Type:
OPEN TIP RANGE SUBSONIC
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
200 grain
From:
$17.99
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21
(0)
Barnes Bullets VOR-TX 120 gr Tac-TX Boat Tail .300 Blackout Ammo, 20/box - 30827
Brand:
Barnes
Bullet Type:
TAC TX BOAT TAIL
Caliber:
.300 AAC Blackout
Grains:
120 grain
Rounds:
20
From:
$35.79
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18
(0)
BARNES AMMUNITION 300 Blackout 110gr Tax-TX FB
Brand:
Barnes Bullets
Bullet Type:
TAC TX FLAT BASE
Caliber:
.300 AAC Blackout
Grains:
110 grain
Rounds:
20
From:
$29.99
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19
(8)
Winchester USA Ready .300 Blackout 125 gr 20 Rounds Ammunition - RED300
Brand:
Winchester
Bullet Type:
OPEN TIP
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
125 grain
From:
$15.93
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20
(20)
Sig Sauer 300 AAC Blackout 220gr OTM Elite Match Ammunition, 20 Round Box - E300A2-20
Brand:
Sig Sauer Ammunition
Bullet Type:
Sierra MatchKing Open Tip Match
Caliber:
.300 AAC Blackout
Grains:
220 grain
Rounds:
20
From:
$25.32
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21
(2)
Prvi Partizan .300 AAC Blackout FMJ 125 gr 20 Rounds Ammunition - PP300BF
Brand:
Prvi Partizan
Bullet Type:
Full Metal Jacket
Caliber:
.300 AAC Blackout
Grains:
125 grain
Rounds:
20
From:
$14.72
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17
(18)
Ammo Inc .300 AAC Blackout Ammo 150gr FMJ, 20rds - 300B150FMJ-A20
Brand:
Ammo Inc
Bullet Type:
Full Metal Jacket
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
150 grain
From:
$11.99
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19
(6)
Sig Sauer Elite Hunting 120 gr Copper Solid .300 Blackout Ammo, 20/box - E300H1SBR20
Brand:
Sig Sauer Ammunition
Bullet Type:
COPPER SOLID
Caliber:
.300 AAC Blackout
Grains:
120 grain
Rounds:
20
From:
$22.99
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16
(20)
Sig Sauer 300 AAC Blackout 120gr HT Ammunition, 20 Round Box - E300H1-20
Brand:
Sig Sauer Ammunition
Bullet Type:
OPEN TIP MATCH (OTM)
Caliber:
.300 AAC Blackout
Capacity:
20
Grains:
120 grain
Rounds:
20
From:
$24.99
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19
(2)
Sierra GameChanger Ammunition 300 AAC Blackout 125 Grain Tipped GameKing Box of 20
Brand:
Sierra
Bullet Type:
Tipped GameKing
Caliber:
.300 AAC Blackout
Capacity:
20
Grains:
125 grain
Rounds:
20
From:
$23.91
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15
Marketplace Insights
★ 4.4/5
based on 669 customer reviews across 742 variants from 58 retailers
Highly rated 300 Blackout firearms and ammunition with excellent accuracy and value, though some users report feeding issues and quality control concerns.
What customers like
Reliable & accurate42%
Runs flawlessly. Clean shooting and very accurate.
Good value for price28%
For the price, this is the best 300 you can get
Suppressor compatible18%
These are movie quiet with a good can
Quality construction15%
Fit and finish is excellent, good trigger
Fast shipping12%
Grabagun always delivers quickly with adequate communication
Common concerns
Feeding/cycling issues14%
Won't shoot sub, OR supersonic ammo without having feed issues
Quality control problems8%
Cerakote finish on this rifle is horrible; you barely touch the rifle & the finish comes off
Poor customer service5%
THEY WILL NOT ANSWER YOUR CALLS AND THEY NEVER SHIPPED MY ITEM
Defective ammunition5%
primers fell out and cussed a jam 2 times out of 40 rounds
Frequently Asked Questions
AR-15 300 Blackout Ammo for Sale
Can a regular AR-15 shoot 300 Blackout?
No. A standard 5.56/.223 AR-15 cannot safely fire 300 Blackout. The cartridge will chamber but generates dangerous pressure that can destroy the rifle. You need a dedicated 300 Blackout barrel; the bolt and lower remain the same. However, existing AR magazines are hit-or-miss and may not feed reliably.
Can a 300 Blackout shoot 223 or 556?
No. These cartridges share the same bolt and magazine, creating danger in both directions. A 300 Blackout round can chamber in a 5.56/.223 rifle with catastrophic results, and 223/5.56 fired in a 300 Blackout rifle causes dangerous pressure spikes. Always verify your chamber marking before loading any ammunition.
What is the best ammo for AR-15 300 Blackout?
For hunting, Barnes VOR-TX 110-grain or Nosler 220-grain work well. For suppressed shooting, Hornady Subsonic 190-grain excels. For defense, Magtech First Defense 123-grain is reliable. Supersonic loads suit standard barrels; subsonic loads pair best with suppressors.
Is 300 Blackout good for hunting?
Yes, 300 Blackout is effective for deer and medium game within 100 yards. Use heavier supersonic loads with quality expanding bullets for reliable terminal performance. It's best suited for close-range hunting in dense woods or from a blind.