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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. Igman 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition

    Image of Igman 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition

    $499.99

    $454.99

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    70 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 3180 FPS
    Muzzle Energy 1235 ft lbs
    • 1000 Rounds
    • 45.5¢ per round
    • Made by Igman Ammunition

  2. Hornady American Gunner 223 Ammo - 500 Rounds of 55 Grain HP Ammunition

    Image of Hornady American Gunner 223 Ammo - 500 Rounds of 55 Grain HP Ammunition
    $459.99
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    2 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type HP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3240 FPS
    Muzzle Energy 1282 ft lbs
    • 500 Rounds
    • 92¢ per round
    • Made by Hornady

  3. PMC 5.56x45 Ammo - 1000 Rounds of 62 Grain Penetrator Ammunition

    Image of PMC 5.56x45 Ammo - 1000 Rounds of 62 Grain Penetrator Ammunition

    $511.99

    $468.99

    12 Reviews

    93 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Penetrator
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3100 FPS
    Muzzle Energy 1323 ft lbs
    • 1000 Rounds
    • 46.9¢ per round
    • Made by PMC

  4. PMC X-TAC 5.56x45 Ammo - 840 Rounds of 62 Grain FMJ M855 Ammunition in Ammo Can

    Image of PMC X-TAC 5.56x45 Ammo - 840 Rounds of 62 Grain FMJ M855 Ammunition in Ammo Can
    $469.99
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    37 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Penetrator
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3100 FPS
    Muzzle Energy 1323 ft lbs
    • 840 Rounds
    • 55.9¢ per round
    • Made by PMC

  5. Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition

    Image of Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition

    $499.99

    $484.99

    12 Reviews

    73 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 3180 FPS
    Muzzle Energy 1235 ft lbs
    • 1000 Rounds
    • 48.5¢ per round
    • Made by Winchester

  6. Armscor USA 223 Ammo - 1000 Rounds of 55 Grain PSP Ammunition

    Image of Armscor USA 223 Ammo - 1000 Rounds of 55 Grain PSP Ammunition
    $484.99

    1 Review

    32 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 3100 FPS
    Muzzle Energy 1323 ft lbs
    • 1000 Rounds
    • 48.5¢ per round
    • Made by Armscor

  7. Hornady Frontier 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition

    Image of Hornady Frontier 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition
    $494.99

    2 Reviews

    50 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 3240 FPS
    Muzzle Energy 1282 ft lbs
    • 1000 Rounds
    • 49.5¢ per round
    • Made by Hornady

  8. Armscor USA 223 Ammo - 1000 Rounds of 62 Grain PSP Ammunition

    Image of Armscor USA 223 Ammo - 1000 Rounds of 62 Grain PSP Ammunition
    $494.99
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    21 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
    • 1000 Rounds
    • 49.5¢ per round
    • Made by Armscor

  9. PMC Bronze Hunting 223 Ammo - 800 Rounds of 55 Grain SP Ammunition

    Image of PMC Bronze Hunting 223 Ammo - 800 Rounds of 55 Grain SP Ammunition
    $498.99
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    3 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type SP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3200 FPS
    Muzzle Energy 1250 ft lbs
    • 800 Rounds
    • 62.4¢ per round
    • Made by PMC

  10. Winchester USA 223 Ammo - 1000 Rounds of 55 Grain FMJ Ammunition

    Image of Winchester USA 223 Ammo - 1000 Rounds of 55 Grain FMJ Ammunition
    $499.99
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    48 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 3240 FPS
    Muzzle Energy 1282 ft lbs

  11. Winchester 5.56x45 Ammo - 1000 Rounds of 62 Grain FMJ M855 Ammunition

    Image of Winchester 5.56x45 Ammo - 1000 Rounds of 62 Grain FMJ M855 Ammunition

    $544.99

    $509.99

    Add Review

    52 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Penetrator
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3060 FPS
    Muzzle Energy 1289 ft lbs

  12. Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ Ammunition

    Image of Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ Ammunition
    $514.99
    Add Review

    69 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 3180 FPS
    Muzzle Energy 1235 ft lbs
    • 1000 Rounds
    • 51.5¢ per round
    • Made by Winchester

  13. Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ Ammunition

    Image of Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ Ammunition
    $519.99
    Add Review

    66 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 3180 FPS
    Muzzle Energy 1235 ft lbs

  14. Winchester USA 5.56x45 Ammo - 1000 Rounds of 62 Grain FMJ M855 Ammunition

    Image of Winchester USA 5.56x45 Ammo - 1000 Rounds of 62 Grain FMJ M855 Ammunition
    $532.99

    3 Reviews

    51 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Penetrator
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3060 FPS
    Muzzle Energy 1289 ft lbs
    • 1000 Rounds
    • 53.3¢ per round
    • Made by Winchester

  15. Armscor 223 Ammo - 1000 Rounds of 62 Grain FMJ-BT Ammunition

    Image of Armscor 223 Ammo - 1000 Rounds of 62 Grain FMJ-BT Ammunition
    $539.99
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    4 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
    • 1000 Rounds
    • 54¢ per round
    • Made by Armscor

  16. Prvi Partizan 223 Ammo - 1000 Rounds of 55 Grain Soft Point Ammunition

    Image of Prvi Partizan 223 Ammo - 1000 Rounds of 55 Grain Soft Point Ammunition
    $649.99
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    1 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type SP
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 3248 FPS
    Muzzle Energy 1283 ft lbs

  17. Black Hills 5.56x45 Ammo - 460 Rounds of 77 Grain OTM Mk 262 MOD 1-C Ammunition in Ammo Can

    Image of Black Hills 5.56x45 Ammo - 460 Rounds of 77 Grain OTM Mk 262 MOD 1-C Ammunition in Ammo Can
    $774.99
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    79 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type OTM
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2750 FPS
    Muzzle Energy 1293 ft lbs
    • 460 Rounds
    • $1.68 per round
    • Made by Black Hills Ammunition

  18. Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 77 Grain OTM Ammunition

    Image of Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 77 Grain OTM Ammunition
    $799.99
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    12 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type OTM
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2750 FPS
    Muzzle Energy 1293 ft lbs
    • 500 Rounds
    • $1.6 per round
    • Made by Black Hills Ammunition

  19. 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
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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 5.56x45 PMC Ammunition
PMC 5.56x45 Ammo - 1000 Rounds of 62 Grain Penetrator Ammunition
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  • Ken said:

    I've been using PMC ammo for about 40 years. NEVER had a problem with it and AMMO.COM has good prices too.

  • SAL said:

    LOVE THIS PLACE FOR MY AMMO. I AM ABLE TO DONATE TO WOUNDED WORRIER AND GET AMMO CAN'T BEAT IT.

  • Brian said:

    My son and I have shot thousands of rounds of the PMC with no complaints whatsoever. And you won't find a better deal on 62 gr 556 bulk ammo anywhere

  • Shooter said:

    The ammo performed awesome.

  • Bone Crusher said:

    Shoots straight, flying fast.

  • T-bag said:

    For the price and quality, never thought I'd be using green tips as target rounds. My AR hasn't jammed up yet after 100 rounds or so, which is impressive. My AR is very picky on ammo, usually can't get 30 rounds out without a couple jams. But this stuff runs like butter through my AR, with some impressive penetration to boot.

  • Mick said:

    All ammo went down range with consistent velocity and tight groupings. Previously purchased ammo from another party had poorly seated primers, this jamming my fire arm.

  • olbull said:

    same as title

  • john said:

    good product / good price

  • Snake said:

    Great ammo! Shoots and cycles perfect. Will defiantly buy more.

  • lroberts103 said:

    Great company to work with. Fast shipping great price

  • Michael said:

    This 5.56 ammo was just what my AR needed.

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Click To Purchase This 5.56x45 Winchester Ammunition
Winchester USA 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition
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  • Steve said:

    Perfect results

  • Kevin said:

    Came fast and cheap. Buy bulk and plant freedom seeds.

  • Brink said:

    All good.

  • Brian said:

    There great for price

  • Brian said:

    Worked as described.

  • Christopher M said:

    Great price, solid performance, and Ammo.com has great customer service.

  • Justis said:

    I've used Winchester rounds in other calibers and never been disappointed by them, and I can say the same for these 5.56 rounds. Excellent training rounds, good pricing, and I've had no issues with the first 450 rounds I've used so far.

  • D. said:

    Was very happy with proformance of Winchester 556.no jams with 2 ARs.will be making another purchase very soon.Thanx much AMMO.you have great sales.

  • Jacob said:

    The rounds were dirty, with some having excess powder or some kind of processing oil/grease on them. A few boxes had 18/19 rounds in them. Worked well in my rifle after 500 rounds so far and were a good price.

  • B.S said:

    Shot 250 rounds , no isues.

  • Jona snow said:

    Great rounds , not one miss fire

  • kevinjc73 said:

    I have a Ruger AR556 in which Ive shot 200 rounds of Winchester 193 556 with no problems accurate at 50, 100 and 200 yards

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Click To Purchase This 223 Armscor Ammunition
Armscor USA 223 Ammo - 1000 Rounds of 55 Grain PSP Ammunition
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  • Chief said:

    Performed well. Lots of rounds and no issues!!

Click To Purchase This 5.56x45 Hornady Ammunition
Hornady Frontier 5.56x45 Ammo - 1000 Rounds of 55 Grain FMJ M193 Ammunition
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  • Gregory said:

    Good ammo fires all the time

  • Aaron M said:

    Hornady it great ammo.

Click To Purchase This 5.56x45 Winchester Ammunition
Winchester USA 5.56x45 Ammo - 1000 Rounds of 62 Grain FMJ M855 Ammunition
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  • Thumper said:

    I fired over five thousand rounds of this ammo without one failure as far as detonation goes, very reputable company and ammo when your life depends on it

  • Jeffrey said:

    Otherwise there reliable an they are fast like 2900 t0 3100fps

  • Thomas said:

    Shot 150 rounds no misfire no gun jam good pattern

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.