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AR15 Ammo For Sale

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Your AR-15 is only as good as the ammo you feed it. Whether you're training, hunting, or stocking up, we've got reliable 223 Rem and 5.56 NATO rounds in stock and ready to ship. Learn More
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  1. Armscor 223 Ammo - 20 Rounds of 62 Grain FMJ-BT Ammunition

    Image of Armscor 223 Ammo - 20 Rounds of 62 Grain FMJ-BT Ammunition
    $13.50

    1 Review

    115 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ-BT
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Energy 1281 ft lbs
    • 20 Rounds
    • 67.5¢ per round
    • Made by Armscor

  2. Armscor USA 223 Ammo - 20 Rounds of 62 Grain PSP Ammunition

    Image of Armscor USA 223 Ammo - 20 Rounds of 62 Grain PSP Ammunition
    $14.99
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    101 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type PSP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2850 FPS
    Muzzle Energy 1118 ft lbs
    • 20 Rounds
    • 74.9¢ per round
    • Made by Armscor

  3. Federal 223 Ammo - 20 Rounds of 62 Grain FMJ-BT Ammunition

    Image of Federal 223 Ammo - 20 Rounds of 62 Grain FMJ-BT Ammunition
    $15.49
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    42 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ-BT
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3020 FPS
    Muzzle Energy 1255 ft lbs
    • 20 Rounds
    • 77.4¢ per round
    • Made by Federal

  4. Winchester 223 Ammo - 20 Rounds of 62 Grain FMJ Ammunition

    Image of Winchester 223 Ammo - 20 Rounds of 62 Grain FMJ Ammunition
    $15.99
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    108 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3100 FPS
    Muzzle Energy 1323 ft lbs

  5. Winchester USA Ready 223 Ammo - 20 Rounds of 62 Grain Open Tip Ammunition

    Image of Winchester USA Ready 223 Ammo - 20 Rounds of 62 Grain Open Tip Ammunition
    $17.49
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    48 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Open Tip
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3065 FPS
    Muzzle Energy 1293 ft lbs

  6. Hornady Frontier 5.56x45 Ammo - 20 Rounds of 62 Grain FMJ Ammunition

    Image of Hornady Frontier 5.56x45 Ammo - 20 Rounds of 62 Grain FMJ Ammunition
    $17.99

    1 Review

    39 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3060 FPS
    Muzzle Energy 1289 ft lbs
    • 20 Rounds
    • 89.9¢ per round
    • Made by Hornady

  7. Hornady BLACK 223 Ammo - 20 Rounds of 62 Grain FMJ Ammunition

    Image of Hornady BLACK 223 Ammo - 20 Rounds of 62 Grain FMJ Ammunition
    $18.99

    1 Review

    9 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3100 FPS
    Muzzle Energy 1323 ft lbs
    • 20 Rounds
    • 94.9¢ per round
    • Made by Hornady

  8. 5.56x45 - 62 Grain FMJ - Hornady BLACK - 20 Rounds

    Image of 5.56x45 - 62 Grain FMJ - Hornady BLACK - 20 Rounds
    $19.99

    1 Review

    19 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3060 FPS
    Muzzle Energy 1289 ft lbs
    • 20 Rounds
    • $1 per round
    • Made by Hornady

  9. Hornady 223 Ammo - 20 Rounds of 73 Grain ELD Match Ammunition

    Image of Hornady 223 Ammo - 20 Rounds of 73 Grain ELD Match Ammunition
    $28.99
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    68 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type ELD Match
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2790 FPS
    Muzzle Energy 1262 ft lbs
    • 20 Rounds
    • $1.45 per round
    • Made by Hornady

  10. Hornady Critical Defense 223 Ammo - 20 Rounds of 73 Grain FTX Ammunition

    Image of Hornady Critical Defense 223 Ammo - 20 Rounds of 73 Grain FTX Ammunition
    $29.99
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    74 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FTX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2790 FPS
    Muzzle Energy 1262 ft lbs
    • 20 Rounds
    • $1.5 per round
    • Made by Hornady

  11. Federal Gold Medal Berger 223 Ammo - 20 Rounds of 73 Grain HPBT Ammunition

    Image of Federal Gold Medal Berger 223 Ammo - 20 Rounds of 73 Grain HPBT Ammunition
    $29.99
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    30 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type HPBT
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2800 FPS
    Muzzle Energy 1271 ft lbs
    • 20 Rounds
    • $1.5 per round
    • Made by Federal

  12. Fiocchi 223 Ammo - 50 Rounds of 62 Grain FMJ-BT Ammunition

    Image of Fiocchi 223 Ammo - 50 Rounds of 62 Grain FMJ-BT Ammunition
    $30.99
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    124 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ-BT
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3000 FPS
    Muzzle Energy 1239 ft lbs
    • 50 Rounds
    • 62¢ per round
    • Made by Fiocchi

  13. Federal 223 Ammo - 20 Rounds of 62 Grain Fusion Ammunition

    Image of Federal 223 Ammo - 20 Rounds of 62 Grain Fusion Ammunition
    $33.99

    1 Review

    14 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Fusion
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2750 FPS
    Muzzle Energy 1041 ft lbs
    • 20 Rounds
    • $1.7 per round
    • Made by Federal

  14. Black Hills Ammunition 5.56 Ammo - 50 Rounds of 62 Grain Barnes TSX Ammunition

    Image of Black Hills Ammunition 5.56 Ammo - 50 Rounds of 62 Grain Barnes TSX Ammunition
    $97.99
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    76 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type TSX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3000 FPS
    Muzzle Energy 1239 ft lbs
    • 50 Rounds
    • $1.96 per round
    • Made by Black Hills Ammunition

  15. Black Hills Ammunition 5.56x45 Ammo - 50 Rounds of 62 Grain Dual Performance Ammunition

    Image of Black Hills Ammunition 5.56x45 Ammo - 50 Rounds of 62 Grain Dual Performance Ammunition
    $103.99
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    21 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type SCHP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3000 FPS
    Muzzle Energy 1239 ft lbs
    • 50 Rounds
    • $2.08 per round
    • Made by Black Hills Ammunition

  16. Hornady BLACK 223 Ammo - 200 Rounds of 62 Grain FMJ Ammunition

    Image of Hornady BLACK 223 Ammo - 200 Rounds of 62 Grain FMJ Ammunition
    $174.99
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    16 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3100 FPS
    Muzzle Energy 1323 ft lbs
    • 200 Rounds
    • 87.5¢ per round
    • Made by Hornady

  17. Hornady BLACK 5.56x45 Ammo - 200 Rounds of 62 Grain FMJ Ammunition

    Image of Hornady BLACK 5.56x45 Ammo - 200 Rounds of 62 Grain FMJ Ammunition
    $189.99

    1 Review

    85 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3060 FPS
    Muzzle Energy 1289 ft lbs
    • 200 Rounds
    • 95¢ per round
    • Made by Hornady

  18. Hornady Critical Defense 223 Ammo - 200 Rounds of 73 Grain FTX Ammunition

    Image of Hornady Critical Defense 223 Ammo - 200 Rounds of 73 Grain FTX Ammunition
    $269.99
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    29 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FTX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2790 FPS
    Muzzle Energy 1262 ft lbs
    • 200 Rounds
    • $1.35 per round
    • Made by Hornady

  19. Federal 223 Ammo - 500 Rounds of 62 Grain FMJ-BT Ammunition

    Image of Federal 223 Ammo - 500 Rounds of 62 Grain FMJ-BT Ammunition
    $278.99
    Add Review

    39 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ-BT
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3020 FPS
    Muzzle Energy 1255 ft lbs
    • 500 Rounds
    • 55.8¢ per round
    • Made by Federal

  20. Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain TSX Ammunition

    Image of Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain TSX Ammunition
    $949.99

    1 Review

    4 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type TSX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3000 FPS
    Muzzle Energy 1239 ft lbs
    • 500 Rounds
    • $1.9 per round
    • Made by Black Hills Ammunition

  21. Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain Dual Performance Ammunition

    Image of Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain Dual Performance Ammunition
    $999.99
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    1 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Dual Performance
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3000 FPS
    Muzzle Energy 1239 ft lbs
    • 500 Rounds
    • $2 per round
    • Made by Black Hills Ammunition

Overview of AR15 Ammo

Whether you run a 223 Remington or 5.56 in your AR‑15, choosing ammo that matches your barrel twist and mission is critical. This category offers everything from lightweight 55‑grain plinking rounds to high‑performance 77‑grain match-grade and polymer-tipped hunting loads. Begin browsing or stock up with confidence — our bulk AR-15 ammo page has you covered for practice or protection.

Looking for volume? Shop our 223 bulk ammo or 5.56 bulk deals to save while topping off your range bag.

Top Brand Picks for AR‑15 Shooters

  • Hornady 5.56 ammo: Ideal for hunters and long-range shooters with options like the .223 VARMAGEDDON and 77‑grain BTHP match loads.
  • Hornady 223 ammo: Home defense and critical duty rounds like Critical Duty, plus accurate Match 75‑grain .223 loads.
  • Federal 223 ammo: Availability you can count on, with popular 55‑grain XM193-type and 77‑grain Sierra MatchKing rounds.
  • Federal 5.56 ammo: Battle-grade performance with dependable loads like Green Tip and Gold Medal Match.
  • PMC 5.56 ammo: Budget-friendly performance with trusted FMJ and X-TAC loads.

Ballistics at a Glance

Understanding trajectory and energy can help you pick the right round for your AR setup. For detailed velocity, drop, and energy charts, check out our 223 ballistics tables and 5.56 ballistics tables. These breakdowns highlight how heavy bullets retain energy further versus lighter, faster rounds.

Sam Jacobs
Written by
Sam Jacobs

Customer Reviews

Click To Purchase This 223 Winchester Ammunition
Winchester USA 223 Ammo - 1000 Rounds of 62 Grain FMJ Ammunition
based on the 1 review below
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  • Cam said:

    Ammo was cheap and works as designed

Click To Purchase This 223 Armscor Ammunition
Armscor 223 Ammo - 20 Rounds of 62 Grain FMJ-BT Ammunition
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  • RUINED MY PISTOL said:

    I bought this ammo brand. It has ruined my barrel of my pistol!!!!!!!!!!

Click To Purchase This 5.56x45 Hornady Ammunition
Hornady Frontier 5.56x45 Ammo - 20 Rounds of 62 Grain FMJ Ammunition
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  • Private citizen said:

    This is a great self defense ammo at a great price.

Click To Purchase This 223 Hornady Ammunition
Hornady BLACK 223 Ammo - 20 Rounds of 62 Grain FMJ Ammunition
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  • Gavin said:

    No Miss fires at all.A Preformed like Expected.

Click To Purchase This 5.56x45 Hornady Ammunition
5.56x45 - 62 Grain FMJ - Hornady BLACK - 20 Rounds
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  • Ernest said:

    Great price good rounds straight A across the board

Click To Purchase This 223 Federal Ammunition
Federal 223 Ammo - 20 Rounds of 62 Grain Fusion Ammunition
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  • Brad said:

    Service excellent and best price.

Click To Purchase This 5.56x45 Hornady Ammunition
Hornady BLACK 5.56x45 Ammo - 200 Rounds of 62 Grain FMJ Ammunition
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  • Bru said:

    It's Hornady Black. Goes down range well, gives decent groups at 50 & 100 Yards through a Hellion. It's not Match grade but it is consistent for my usage. Good prices and quick shipping is always a bonus too! Thanks Ammo.com

Click To Purchase This 5.56x45 Black Hills Ammunition Ammunition
Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain TSX Ammunition
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  • edward said:

    We fired over 300 rds on the range from 15 to 100 yards. The Black Hills 556 and 223 is absolutely the finest rifle ammo our agency ever used. It will save your life if ever in a gun battle with bad guys.