Buy 5.56 Ammo for Sale
(20)
Winchester 5.56mm 55gr FMJ Ammunition 20-Rounds
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$9.56
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29
(20)
PMC X-Tac 5.56mm NATO 62gr LAP Ammunition 20rds - 556k
Brand:
PMC
Bullet Type:
LAP
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
62 grain
From:
$9.59
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25
(20)
PMC X-TAC 5.56 NATO Ammo 55 Grain FMJBT, 20 rds/box u2013 556X
Brand:
PMC
Barrel Length:
20"
Bullet Type:
Full Metal Jacket Boat Tail
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
From:
$9.39
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25
(16)
Hornady Frontier 5.56 NATO Ammo 55 Grain FMJ, 20rds - FR200
Brand:
Hornady
Bullet Type:
FMJ
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$10.55
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27
(7)
Winchester Ammunition 55 gr Full Metal Jacket 5.56 Ammo, 1000/box - WM1931000
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
1000
Finish Per Color:
Brass
Grains:
55 grain
(0)
Hornady AMMO 5.56 NATO 75 GR BTHP SPF
Brand:
Hornady
Bullet Type:
BTHP
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
75 grain
From:
$21.63
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23
(0)
Winchester Ammo 5.56x45mm NATO M193 Ammo 55 G rain FMJ 150 Rounds Value Pack
Brand:
CCI
Bullet Type:
FULL METAL JACKET (FMJ)
Caliber:
5.56×45mm NATO
Capacity:
150
Finish Per Color:
Brass
Grains:
55 grain
From:
$74.99
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25
(20)
Winchester M855 62 gr Green Tip FMJ 5.56x45mm Ammunition 150 Rounds - WM855150
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
150
Finish Per Color:
Brass
Grains:
62 grain
From:
$81.99
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18
(1)
PPU Rangemaster 55 gr FMJBT 5.56x45 Ammunition 20 Rounds - PPRM5561
Brand:
Prvi Partizan
Bullet Type:
FULL METAL JACKET BOAT TAIL (FMJBT)
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$10.89
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17
(0)
Hornady Superfomance 5.56 Nato 55 Grain Copper Solid CX Brass Cased Centerfire Rifle Ammunition, 20 Rounds, 812544
Brand:
Hornady
Bullet Type:
CX
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$26.09
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16
(0)
Fiocchi Shooting Dynamics 5.56x45 55 gr FMJBT 50 Rounds Ammunition - 556M193L
Brand:
Fiocchi
Bullet Type:
Full Metal Jacket Boat Tail
Caliber:
5.56×45mm NATO
Capacity:
50
Finish Per Color:
Brass
Grains:
55 grain
From:
$19.99
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17
(0)
Barnes Bullets Precision 69 gr Open Tip Match Boat Tail 5.56 Ammo, 20/box - 30846
Brand:
Barnes
Bullet Type:
OTM BOAT TAIL
Caliber:
5.56×45mm NATO
Grains:
69 grain
Rounds:
20
From:
$24.99
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17
(16)
Winchester USA RIFLE, 5.56x45mm NATO, 55 grain, Full Metal Jacket, Brass, Centerfire Rifle Ammo, 200, WM193200
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
200
Finish Per Color:
Brass
Grains:
55 grain
(7)
USA SERVICE GRADE 5.56MM NATO AMMO - 105-004-477WB 5.56MM NATO 55GR FULL METAL JACKET 20/BOX
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$8.99
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19
(7)
Winchester M855 5.56 Ammo 62 Grain FMJ 500 Rds - WM855500
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
500
Finish Per Color:
Brass
Grains:
62 grain
(4)
Winchester USA Valor 5.56mm NATO 62gr FMJ Rifle Ammo - 125 Rounds
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
125
Finish Per Color:
Brass
Grains:
62 grain
From:
$81.28
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17
(20)
Winchester M855 62 gr FMJ Green Tip 5.56x45mm Ammunition 200 Rounds - WM855200
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
200
Finish Per Color:
Brass
Grains:
62 grain
From:
$99.99
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15
(4)
Hornady Frontier 62 gr Full Metal Jacket 5.56 Ammo, 20/box - FR260
Brand:
Hornady
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
62 grain
From:
$11.16
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18
(1)
Barnes Bullets VOR-TX 62 gr TSX Boat Tail 5.56 Ammo, 20/box - 31190
Brand:
Barnes
Barrel Length:
26"
Bullet Type:
TSX BOAT TAIL
Caliber:
5.56×45mm NATO
Capacity:
2
Finish Per Color:
Brass
From:
$19.99
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16
(1)
Winchester USA Valor M193 55 gr FMJ 5.56 Ammunition, 125 Rounds - USA193125
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
125
Finish Per Color:
Brass
Grains:
55 grain
From:
$66.25
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16
(2)
Magtech 5.56x45mm 55gr FMJ M193 50 Rounds Ammunition - 556A
Brand:
Magtech
Bullet Type:
Jacketed Soft Point
Caliber:
5.56×45mm NATO
Capacity:
50
Finish Per Color:
Brass
Grains:
55 grain
From:
$12.80
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16
(7)
Winchester M855 62 gr FMJ 5.56x45mm Ammunition 1000 Rounds - WM8551000
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
1000
Finish Per Color:
Brass
Grains:
62 grain
(2)
Sig Sauer Elite Match Grade 5.56mm NATO 77gr OTM Rifle Ammo - 20 Rounds
Brand:
Sig Sauer
Bullet Type:
Open Tip Match
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
77 grain
From:
$24.28
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14
(0)
Prvi Partizan Rangemaster 5.56 Ammo 55 Grain FMJBT, 1000/Can - PPRM5561M
Brand:
Prvi Partizan
Bullet Type:
Full Metal Jacketed Boat-Tail
Caliber:
5.56×45mm NATO
Capacity:
1000
Finish Per Color:
Brass
Grains:
55 grain
Marketplace Insights
★ 4.7/5
based on 458 customer reviews across 119 variants from 44 retailers
Highly reliable, accurate ammunition with excellent performance at competitive pricing, though some batches have had minor quality control issues with damaged casings and occasional quantity shortages.
What customers like
Reliability & Performance68%
Shot over 400 rounds with no failures. I was able to achieve hand size groups at 100 yards.
Accuracy45%
Shooting .3 - .4 MOA out of an spr with a Krieger barrel at 100 yards.
Value & Price38%
Best bang for your bucks. Havent experience any failures so far.
Clean Burning22%
very clean shooting and consistent ammo so far.
Fast Shipping15%
Ammo came to my door within three days of shipping!
Common concerns
Quantity Shortages8%
I was short 3 rounds, but if you figure just how many people are being shorted those rounds, that really adds up.
Damaged/Dented Cases7%
I did notice quite a few dented shell casings
High Current Prices7%
Ridiculously expensive. I wish I could go back to 2018 and order a hundred cases when they were less than half the price.
Primers Too Hard2%
perhaps the primers are a bit harder than standard
Frequently Asked Questions
Buy 5.56 Ammo for Sale
Is 5.56x45mm NATO the same as 223?
Not exactly. Both cartridges share identical external dimensions, but 5.56 NATO runs at higher pressure (around 58,000 psi) than .223 Remington. A rifle chambered for 5.56 NATO can safely shoot .223, but a .223-only chamber may not handle 5.56 NATO safely. Always verify your rifle's chamber marking.
Can I shoot 223 out of my 5.56 NATO rifle?
Yes, you can safely shoot .223 Remington ammunition through a 5.56 NATO chambered rifle. The 5.56 chamber is slightly larger, giving it extra headspace that handles the lower-pressure .223 without issue. Check your barrel marking to confirm 5.56 NATO chambering before shooting.
What do green tip 556 rounds do?
Green tip 5.56 rounds (M855) use a steel penetrator core designed to improve penetration through light barriers like car doors and sheet metal. They are not truly armor-piercing — the steel tip has minimal effect on actual body armor. They're widely used for target shooting and training.
What is the shelf life of 5.56 ammo?
Properly stored 5.56 ammunition remains functional for decades. Manufacturers typically recommend use within ten years, though this is conservative. Storage conditions matter most—keep rounds cool, dry, and away from moisture and temperature swings. Poor storage can degrade ammunition within just a few years.
Can you hunt with 223 and 556?
Yes, both .223 Remington and 5.56 NATO work for hunting. They're most suitable for varmints and small game. For deer-sized animals, use expanding bullets of 62 grains or heavier, though some states prohibit them for deer. Verify your rifle's chamber before shooting either cartridge.