AR-15 Ammo for Sale
Updated · 2,612 products · 1,511 in stock · prices refreshed daily
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Hornady 82242 American Whitetail 450 Bushmaster 245 gr InterLock 20 Rd
Brand:
Hornady
Bullet Type:
InterLock
Caliber:
.450 BM
Capacity:
20
Finish Per Color:
Brass
Grains:
245 grain
From:
$27.19
34
(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:
$9.99
34
(0)
Hornady 80891 Black 208 Grain A-Max Brass .300 AAC Blackout 20Rd
Brand:
Hornady
Bullet Type:
A-Max
Caliber:
.300 AAC Blackout
Capacity:
20
Finish Per Color:
Brass
Grains:
208 grain
From:
$24.99
33
(0)
Hornady .223 Remington 55 Grain HP AG-50 Count
Brand:
Hornady
Bullet Type:
Hollow Point Match
Caliber:
.223 Rem
Capacity:
50
Finish Per Color:
Brass
Grains:
55 grain
From:
$39.89
30
(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:
$9.98
30
(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:
$8.99
32
(0)
Hornady BLACK 450 Bushmaster 250gr FTX, 20rd Box
Brand:
Hornady
Bullet Type:
FTX
Caliber:
.450 BM
Capacity:
20
Finish Per Color:
Brass
Grains:
250 grain
From:
$31.89
31
(8)
Hornady 223 55gr V-MAX Varmint Express Ammunition 20rds - 8327
Brand:
Hornady
Bullet Type:
V-MAX
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$21.59
31
(20)
Winchester 5.56 M855 Green Tip Brass 62-Grain 20-Rounds FMJ
Brand:
Winchester
Bullet Type:
Full Metal Jacket
Caliber:
5.56×45mm NATO
Capacity:
20
Finish Per Color:
Brass
Grains:
62 grain
From:
$10.49
34
(20)
PMC X-TAC 5.56 NATO Ammo 55 Grain FMJBT, 20 rds/box - 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:
$8.99
31
(0)
Hornady Frontier 6.5 Grendel Ammo 123 Grain FMJ 20 rds/box - FR700
Brand:
Hornady
Bullet Type:
FMJ
Caliber:
6.5mm Grendel
Capacity:
20
Finish Per Color:
Brass
Grains:
123 grain
From:
$17.99
30
(14)
Hornady Frontier 55 gr Full Metal Jacket .223 Rem Ammo, 20/box - FR100
Brand:
Hornady
Bullet Type:
FMJ
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$8.89
32
(12)
Hornady 9mm 100gr FTX Critical Defense Lite Ammunition 25rds - 90240
Brand:
Hornady
Barrel Length:
4"
Bullet Type:
FLEX TIP EXPANDING
Caliber:
9×19mm Parabellum
Capacity:
25
Finish Per Color:
Nickel
From:
$23.99
31
(2)
Hornady 223 75gr BTHP Match Ammunition 20rds - 8026
Brand:
Hornady
Bullet Type:
BTHP
Caliber:
.223 Rem
Grains:
75 grain
Rounds:
20
From:
$23.50
30
(0)
Federal Power-Shok 300 gr Jacketed Hollow Point .450 Ammo, 20/box - 450BMB
Brand:
Federal
Bullet Type:
Jacketed Hollow Point
Caliber:
.450 BM
Capacity:
20
Finish Per Color:
Brass
Grains:
300 grain
From:
$37.22
32
(5)
Federal Gold Medal .223 Rem 69-Grain 20-Rounds BTHP
Brand:
Federal
Bullet Type:
Sierra Matchking Boat Tail Hollow Point
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
69 grain
From:
$26.69
31
(15)
Federal Fusion .224 Valkyrie 90gr Ammunition, 20 Rds - F224VLKMSR1
Brand:
Federal
Bullet Type:
Fusion Soft Point
Caliber:
.224 VAL
Capacity:
20
Finish Per Color:
Brass
Grains:
90 grain
From:
$25.04
34
(7)
American Eagle 6.8 SPC 115gr FMJ Ammunition 20rds - AE68A
Brand:
Federal
Bullet Type:
Total Metal Jacket
Caliber:
6.8mm Remington SPC
Grains:
115 grain
Rounds:
20
From:
$19.19
30
(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:
$26.95
32
(7)
Federal 9mm 124gr Hydra-Shok Ammunition 20rds - P9HS1
Brand:
Federal
Bullet Type:
Hydra-Shok Jacketed Hollow Point
Caliber:
9×19mm Parabellum
Capacity:
20
Finish Per Color:
Nickel Plated Brass
Grains:
124 grain
From:
$22.69
32
(0)
FED AM EAGLE 223REM 55G FMJ BT20/500 UPC: 029465084820
Brand:
Federal
Bullet Type:
FULL METAL JACKET BOAT TAIL (FMJBT)
Caliber:
.223 Rem
Capacity:
20
Finish Per Color:
Brass
Grains:
55 grain
From:
$9.99
29
(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:
$18.50
29
(20)
American Eagle 9mm 147gr FMJ FP Ammunition 50rds - AE9FP
Brand:
Federal
Bullet Type:
Full Metal Jacket
Caliber:
9×19mm Parabellum
Capacity:
50
Finish Per Color:
Brass
Grains:
147 grain
From:
$12.99
33
(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:
$14.99
30
Marketplace Insights
★ 4.7/5
based on 28,056 customer reviews across 2,612 products from 46 retailers
Overwhelmingly positive feedback on reliability, accuracy, and value, with minor concerns about ammo compatibility and occasional cosmetic defects.
What customers like
Reliability & No Jams42%
This gun shoots no matter what it has going on - dirty guts, crap ammo, hurt feelings - it just will not jam.
Accuracy & Performance38%
very smooth, no jams, very accurate up to 50 yards very good AR for the price!
Quality Build & Design35%
Beautifully designed and uncomplicated action. Lightweight and small enough for EDC.
Great Value For Price28%
Best bang for your bucks. Havent experience any failures so far.
Smooth Trigger16%
Trigger is pretty smooth as well.
Common concerns
Ammo Compatibility Issues8%
had 6-7 failures to chamber. The rounds got stuck below feed ramp.
Feeding/Jamming Problems7%
it's propensity for failure to feed and it's difficulty of breakdown and reassembly.
Cosmetic/Finish Defects4%
Barrel has ring marks, chamber has finish worn off on top and the slide blue finish has scuffs and blemishes
Tight Magazines/Springs3%
The magazines are difficult to load sometimes due to the spring being really tight.
Frequently Asked Questions
AR-15 Ammo for Sale
What ammo is used in the AR-15?
AR-15s primarily fire 5.56 NATO or .223 Remington ammunition. Both calibers are interchangeable in most AR-15s, with common bullet weights ranging from 55 to 77 grains. Conversion uppers allow shooting other calibers such as .22 LR, 9mm, and .300 Blackout.
Is 556 or 223 better for AR?
Both work in most AR-15s. 5.56 NATO runs at higher pressure, making it better for defense and duty use. .223 Remington is more accurate, stabilizes bullets quicker, and is favored for precision work and training. A .223 Wylde chamber safely handles both cartridges.
Can you shoot 5.56 in a .223 AR-15?
No. A .223 AR-15 cannot safely fire 5.56 NATO ammunition. The 5.56 round operates at significantly higher pressure and risks damaging the rifle or causing injury. However, a 5.56 NATO rifle can safely shoot .223 Remington since it operates at lower pressure.
What grain of AR-15 ammo is best?
Best grain depends on your use. 55gr is affordable and versatile for range shooting. 62gr offers better performance closer to military spec. For long-range precision, heavier match rounds like 77gr work well. Your barrel's twist rate and intended purpose should guide your choice.
What AR ammo is best for home defense?
For AR home defense, consider 62-grain hollow-point or soft-point rounds like Hornady Black or Black Hills Dual Performance TSX. These balance expansion with controlled penetration. 5.56 NATO offers higher pressure than .223 Remington, improving terminal performance. Avoid FMJ rounds due to over-penetration risk indoors.
What is the most common AR ammo?
5.56 NATO is the most common AR ammo, developed alongside the AR-15 for military use. It suits range shooting, hunting, and defense. .223 Remington is nearly identical but runs at lower pressure. Rifles chambered in 5.56 NATO can safely fire both; .223 chambers should not fire 5.56.
Is 300 Blackout better than 556?
Neither is universally better—it depends on your needs. 5.56 excels at range and velocity, reaching out effectively past 300 yards. 300 Blackout shines suppressed and subsonic, delivering heavier bullets at moderate distances with less noise. Choose 5.56 for general shooting; pick 300 Blackout for close-quarters suppressed work.
Does an AR-15 shoot 556 or 223?
AR-15s shoot both depending on chamber type. A 5.56 NATO or .223 Wylde chamber handles both safely. A .223 Remington chamber fires only .223 ammo. You can shoot .223 in a 5.56 gun, but never 5.56 in a .223 chamber due to pressure differences.
